Professor Stephen Barnett
- Professor of Theoretical Physics (Physics & Astronomy)
telephone:
1879
email:
Stephen.Barnett@glasgow.ac.uk
School of Physics and Astronomy, Kelvin Building
https://orcid.org/0000-0003-0733-4524Research interests
Steve Barnett has been an active researcher, primarily in the fields of quantum optics and quantum information, for more than 30 years (isn't it amazing how time flies). He has very wide research interests and has worked on the non-classical properties of light and its interaction with matter (low-energy quantum electrodynamics), the quantum theory of optical phase and rotation angles, quantum communications and cryptography, quantum optics in material media, including optical forces and torques, quantum retrodiction (time-reversed quantum theory), optimal quantum measurements and the orbital angular momentum of light. In his spare time (!) he also dabbles in general relativity and in low temperature physics. Throughout his career, he has always tried to work closely with experimental groups, partly because that is a way to stay true to the physics but principally because experimenters ask such interesting questions. He firmly believes that a good theoretical explanation should be expressible on the back on the proverbial envelope and strives, wherever possible, for the neat and analytical solution to a problem. He is the author of two graduate level textbooks: "Methods in Theoretical Quantum Optics" (written with Paul Radmore) and "Quantum Information", both published by Oxford University Press.
researcherID: 0000-0003-0733-4524
Publications
2024
McWilliam, A. , Cisowski, C. M., Ye, Z., Speirits, F. C. , Goette, J. B. , Barnett, S. and Franke-Arnold, S. (2024) A Topological Approach to Characterising Optical Skyrmions. In: Complex Light and Optical Forces XVIII, Photonics West, San Francisco, California, United States, 29 January – 1 February 2024, 1290105 -1. ISBN 9781510670624 (doi: 10.1117/12.3002420)
Barnett, S. M. , Cresser, J. D. and Croke, S. (2024) Revisiting the damped quantum harmonic oscillator. Physica Scripta, 99(2), 025109. (doi: 10.1088/1402-4896/ad1902)
2023
Barnett, S. M. , Cisowski, C. M., McWilliam, A., Speirits, F. C. , Ye, Z., Götte, J. B. and Franke-Arnold, S. (2023) Optical Skyrmions. In: Active Photonic Platforms (APP) 2023, San Diego, CA, USA, 20-25 Aug 2023, 126470A. ISBN 9781510665088 (doi: 10.1117/12.2676688)
Barnett, S. M. (2023) Vacuum representations of blackbody radiation. European Physical Journal: Special Topics, (doi: 10.1140/epjs/s11734-023-00987-2) (Early Online Publication)
Barnett, S. M. (2023) Vacuum representations of blackbody radiation. European Physical Journal: Special Topics, (doi: 10.1140/epjs/s11734-023-00987-2)
McWilliam, A., Cisowski, C. M., Ye, Z., Speirits, F. C. , Götte, J. B. , Barnett, S. M. and Franke-Arnold, S. (2023) Topological approach of characterizing optical skyrmions and multi-skyrmions. Laser and Photonics Reviews, 17(9), 2300155. (doi: 10.1002/lpor.202300155)
Barnett, S.M. , Speirits, F.C. and Götte, J.B. (2023) On lines of constant polarisation in structured light beams. EPL (Europhysics Letters), 143(3), 35002. (doi: 10.1209/0295-5075/ace8b7)
Barnett, S. M. and Dalton, B. J. (2023) Glauber P-representations for fermions. Physica Scripta, 98(4), 044006. (doi: 10.1088/1402-4896/acc432)
2022
Barnett, S. M. (2022) On single-photon and classical interference. Physica Scripta, 97(11), 114004.
Barnett, S. M. , Speirits, F. C. and Babiker, M. (2022) Optical angular momentum in atomic transitions: a paradox. Journal of Physics A: Mathematical and Theoretical, 55(23), 234008. (doi: 10.1088/1751-8121/ac6bd1)
Strasser, F., Barnett, S. M. , Ritsch-Marte, M. and Thalhammer, G. (2022) Generally applicable holographic torque measurement for optically trapped particles. Physical Review Letters, 128(21), 213604. (doi: 10.1103/PhysRevLett.128.213604)
Westerberg, N. , Messinger, A. and Barnett, S. M. (2022) Duality, decay rates, and local-field models in macroscopic QED. Physical Review A: Atomic, Molecular and Optical Physics, 105(5), 053704. (doi: 10.1103/PhysRevA.105.053704)
Hamilton, C. S., Christ, R., Barkhofen, S., Barnett, S. M. , Jex, I. and Silberhorn, C. (2022) Quantum-state creation in nonlinear-waveguide arrays. Physical Review A: Atomic, Molecular and Optical Physics, 105(4), 042622. (doi: 10.1103/PhysRevA.105.042622)
2021
Barnett, S. M. , Jeffers, J. and Pegg, D. T. (2021) Quantum retrodiction: foundations and controversies. Symmetry, 13(4), 586. (doi: 10.3390/sym13040586)
2020
Gao, S., Speirits, F. C. , Castellucci, F., Franke-Arnold, S. , Barnett, S. M. and Götte, J. B. (2020) Paraxial skyrmionic beams. Physical Review A: Atomic, Molecular and Optical Physics, 102, 053513. (doi: 10.1103/PhysRevA.102.053513)
Kelly, C. et al. (2020) Controlling the symmetry of inorganic ionic nanofilms with optical chirality. Nature Communications, 11, 5169. (doi: 10.1038/s41467-020-18869-9) (PMID:33057000) (PMCID:PMC7560753)
Li, S., Zhang, S., Feng, X., Barnett, S. M. , Zhang, W., Cui, K., Liu, F. and Huang, Y. (2020) Programmable coherent linear quantum operations with high-dimensional optical spatial modes. Physical Review Applied, 14(2), 024027. (doi: 10.1103/PhysRevApplied.14.024027)
Messinger, A., Westerberg, N. and Barnett, S. M. (2020) Spontaneous emission in anisotropic dielectrics. Physical Review A: Atomic, Molecular and Optical Physics, 102, 013721. (doi: 10.1103/PhysRevA.102.013721)
Messinger, A., Ritboon, A., Crimin, F. , Croke, S. and Barnett, S. (2020) Coherence and catalysis in the Jaynes-Cummings model. New Journal of Physics, 22, 043008. (doi: 10.1088/1367-2630/ab7607)
Crimin, F. , MacKinnon, N., Götte, J. B. and Barnett, S. M. (2020) Continuous Symmetries and Conservation Laws in Chiral Media. In: SPIE OPTO 2020, San Francisco, CA, USA, 1-6 Feb 2020, (doi: 10.1117/12.2550815)
2019
Black, A. N., Giese, E., Braverman, B., Zollo, N., Barnett, S. M. and Boyd, R. W. (2019) Quantum, nonlocal aberration cancellation. Physical Review Letters, 123, 143603. (doi: 10.1103/PhysRevLett.123.143603)
Zhao, P., Li, S., Feng, X., Barnett, S. M. , Zhang, W., Cui, K., Liu, F. and Huang, Y. (2019) Universal linear optical operations on discrete phase-coherent spatial modes with a fixed and non-cascaded setup. Journal of Optics, 21(10), 104003. (doi: 10.1088/2040-8986/ab3d8b)
Flatt, K., Barnett, S. M. and Croke, S. (2019) Multiple-copy state discrimination of noisy qubits. Physical Review A: Atomic, Molecular and Optical Physics, 100, 032122. (doi: 10.1103/PhysRevA.100.032122)
Crimin, F. , Mackinnon, N., Götte, J. B. and Barnett, S. (2019) On the conservation of helicity in a chiral medium. Journal of Optics, 21(9), 094003. (doi: 10.1088/2040-8986/ab387c)
Leach, J., Wright, A.J., Götte, J. , Girkin, J.M., Allen, L., Franke-Arnold, S. , Barnett, S.M. and Padgett, M.J. (2019) Leach et al. Reply:. Physical Review Letters, 122(13), 139402. (doi: 10.1103/PhysRevLett.122.139402)
Barnett, S. M. , Brougham, T., Croke, S. and Phoenix, S. J.D. (2019) Optimized attacks on twin-field quantum key distribution. Journal of the Optical Society of America B: Optical Physics, 36(3), B122-B129. (doi: 10.1364/JOSAB.36.00B122)
Crimin, F. , Mackinnon, N., Goette, J. B. and Barnett, S. M. (2019) Optical helicity and chirality: conservation and sources. Applied Sciences, 9(5), 828. (doi: 10.3390/app9050828)
Ritboon, A., Croke, S. and Barnett, S. M. (2019) Optical angular momentum transfer on total internal reflection. Journal of the Optical Society of America B: Optical Physics, 36(2), pp. 482-492. (doi: 10.1364/JOSAB.36.000482)
Marichez, V., Tassoni, A., Cameron, R. P., Barnett, S. M. , Eichhorn, R., Genet, C. and Hermans, T. M. (2019) Mechanical chiral resolution. Soft Matter, 15, pp. 4593-4608. (doi: 10.1039/C9SM00778D) (PMID:31147662)
2018
Flatt, K., Croke, S. and Barnett, S. M. (2018) Two-time state formalism for quantum eavesdropping. Physical Review A: Atomic, Molecular and Optical Physics, 98, 052339. (doi: 10.1103/PhysRevA.98.052339)
Sonnleitner, M. and Barnett, S. M. (2018) Mass-energy and anomalous friction in quantum optics. Physical Review A: Atomic, Molecular and Optical Physics, 98, 042106. (doi: 10.1103/PhysRevA.98.042106)
Vaccaro, J., Croke, S. and Barnett, S. (2018) Is coherence catalytic? Journal of Physics A: Mathematical and Theoretical, 51(41), 414008. (doi: 10.1088/1751-8121/aac112)
Barnett, S. M. (2018) Is there a problem with our Hamiltonians for quantum nonlinear optical processes? Journal of Russian Laser Research, 39(4), pp. 318-324. (doi: 10.1007/s10946-018-9725-1)
Barnett, S. M. (2018) Schrödinger picture analysis of the beam splitter: an application of the Janszky representation. Journal of Russian Laser Research, 39(4), pp. 340-348. (doi: 10.1007/s10946-018-9727-z)
Barnett, S. M. , Ferenczi, G., Gilson, C. R. and Speirits, F. C. (2018) Statistics of photon-subtracted and photon-added states. Physical Review A: Atomic, Molecular and Optical Physics, 98(1), 013809. (doi: 10.1103/PhysRevA.98.013809)
Weir, G., Hughes, C., Barnett, S. M. and Croke, S. (2018) Optimal measurement strategies for the trine states with arbitrary prior probabilities. Quantum Science and Technology, 3(3), 035003. (doi: 10.1088/2058-9565/aabc68)
Barnett, S. M. and Sonnleitner, M. (2018) Vacuum friction. Journal of Modern Optics, 65(1), pp. 23-29. (doi: 10.1080/09500340.2017.1374482)
Barnett, S. M. and Sonnleitner, M. (2018) The vacuum friction paradox and related puzzles. Contemporary Physics, 59(2), pp. 145-154. (doi: 10.1080/00107514.2018.1439333)
2017
Flatt, K., Barnett, S. M. and Croke, S. (2017) Gleason-Busch theorem for sequential measurements. Physical Review A: Atomic, Molecular and Optical Physics, 96(6), 062125. (doi: 10.1103/PhysRevA.96.062125)
Sonnleitner, M. and Barnett, S. M. (2017) The Röntgen interaction and forces on dipoles in time-modulated optical fields. European Physical Journal D, 71, 336. (doi: 10.1140/epjd/e2017-80273-8)
Barnett, S. M. et al. (2017) Journeys from quantum optics to quantum technology. Progress in Quantum Electronics, 54, pp. 19-45. (doi: 10.1016/j.pquantelec.2017.07.002)
Weir, G., Barnett, S. M. and Croke, S. (2017) Optimal discrimination of single-qubit mixed states. Physical Review A: Atomic, Molecular and Optical Physics, 96(2), 022312. (doi: 10.1103/PhysRevA.96.022312)
Barnett, S. M. (2017) Barnett replies. Physical Review Letters, 119(2), 029502. (doi: 10.1103/PhysRevLett.119.029502) (PMID:28753329)
Ritboon, A., Croke, S. and Barnett, S. (2017) Proposed optical realisation of a two photon, four-qubit entangled χ state. Journal of Optics, 19(7), 075201. (doi: 10.1088/2040-8986/aa72af)
Dalton, B. J., Jeffers, J. and Barnett, S. M. (2017) Grassmann phase space theory for fermions. Fortschritte der Physik, 65(6-8), 1600038. (doi: 10.1002/prop.201600038)
Croke, S. , Barnett, S. M. and Weir, G. (2017) Optimal sequential measurements for bipartite state discrimination. Physical Review A: Atomic, Molecular and Optical Physics, 95(5), 052308. (doi: 10.1103/PhysRevA.95.052308)
Trautmann, N., Ferenczi, G., Croke, S. and Barnett, S. M. (2017) Holographic quantum imaging: reconstructing spatial properties via two-particle interference. Journal of Optics, 19(5), 054005. (doi: 10.1088/2040-8986/aa67b6)
Phillips, D. B., Sun, M.-j., Taylor, J. M. , Edgar, M. P., Barnett, S. M. , Gibson, G. M. and Padgett, M. J. (2017) Adaptive foveated single-pixel imaging with dynamic supersampling. Science Advances, 3(4), e1601782. (doi: 10.1126/sciadv.1601782)
Barnett, S. M. (2017) Relativistic electron vortices. Physical Review Letters, 118(11), 114802. (doi: 10.1103/PhysRevLett.118.114802)
Speirits, F. C. , Sonnleitner, M. and Barnett, S. M. (2017) From retrodiction to Bayesian quantum imaging. Journal of Optics, 19(4), 044001. (doi: 10.1088/2040-8986/aa5ccf)
Wang, Y., Potoček, V., Barnett, S. M. and Feng, X. (2017) Programmable holographic technique for implementing unitary and nonunitary transformations. Physical Review A: Atomic, Molecular and Optical Physics, 95(3), 033827. (doi: 10.1103/PhysRevA.95.033827)
Barnett, S. M. , Babiker, M. and Padgett, M. J. (2017) Optical orbital angular momentum. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 375(2087), 20150444. (doi: 10.1098/rsta.2015.0444) (PMID:28069775) (PMCID:PMC5247487)
Sonnleitner, M., Trautmann, N. and Barnett, S. M. (2017) Will a decaying atom feel a friction force? Physical Review Letters, 118(5), 053601. (doi: 10.1103/PhysRevLett.118.053601) (PMID:28211712)
Cameron, R. P., Götte, J. B. , Barnett, S. M. and Yao, A. M. (2017) Chirality and the angular momentum of light. Proceedings of the Royal Society of London Series A: Mathematical, Physical and Engineering Sciences, 375, 20150433. (doi: 10.1098/rsta.2015.0433) (PMID:28069764)
Dalton, B.J., Jeffers, J. and Barnett, S.M. (2017) Grassmann phase space methods for fermions. II. Field theory. Annals of Physics, 377, pp. 268-310. (doi: 10.1016/j.aop.2016.12.026)
Croke, S. and Barnett, S. M. (2017) Difficulty of distinguishing product states locally. Physical Review A: Atomic, Molecular and Optical Physics, 95(1), 012337. (doi: 10.1103/PhysRevA.95.012337)
Barnett, S. M. (2017) Optical Forces: Some Fundamentals and Some Surprises. 2017 11th International Congress on Engineered Materials Platforms for Novel Wave Phenomena (Metamaterials), Marseille, France, 27 Aug - 2 Sept 2017. pp. 328-330. ISBN 9781538637685 (doi: 10.1109/MetaMaterials.2017.8107801)
2016
Brougham, T., Wildfeuer, C. F., Barnett, S. M. and Gauthier, D. J. (2016) The information of high-dimensional time-bin encoded photons. European Physical Journal D, 70(10), 214. (doi: 10.1140/epjd/e2016-70357-4)
Cameron, R. B., Götte, J. B. and Barnett, S. M. (2016) Chiral rotational spectroscopy. Physical Review A: Atomic, Molecular and Optical Physics, 94(3), 032505. (doi: 10.1103/PhysRevA.94.032505)
Cameron, R. P., Goette, J. B. , Barnett, S. M. and Cotter, J.P. (2016) Matter-wave grating distinguishing conservative and dissipative interactions. Physical Review A: Atomic, Molecular and Optical Physics, 64, 013604. (doi: 10.1103/PhysRevA.94.013604)
Dalton, B.J., Jeffers, J. and Barnett, S.M. (2016) Grassmann phase space methods for fermions. I. Mode theory. Annals of Physics, 370, pp. 12-66. (doi: 10.1016/j.aop.2016.03.006)
Barnett, S. M. , Allen, L., Cameron, R. P., Gilson, C. R. , Padgett, M. J. , Speirits, F. C. and Yao, A. M. (2016) On the natures of the spin and orbital parts of optical angular momentum. Journal of Optics, 18(6), 064004. (doi: 10.1088/2040-8978/18/6/064004)
Sonnleitner, M., Jeffers, J. and Barnett, S. M. (2016) Local Retrodiction Models for Photon-Noise-Limited Images. In: Optics, Photonics and Digital Technologies for Imaging Applications IV, Brussels, Belgium, 05-06 Apr 2016, 98960V. (doi: 10.1117/12.2224444)
Barnett, S. M. and Cameron, R. P. (2016) Reply to comment on `Energy conservation and the constitutive relations in chiral and non-reciprocal media'. Journal of Optics, 18(6), 068002. (doi: 10.1088/2040-8978/18/6/068002)
Barnett, S. M. and Cameron, R. P. (2016) Energy conservation and the constitutive relations in chiral and non-reciprocal media. Journal of Optics, 18(1), 015404. (doi: 10.1088/2040-8978/18/1/015404)
2015
Cameron, R. P., Speirits, F. C. , Gilson, C. R. , Allen, L. and Barnett, S. M. (2015) The azimuthal component of Poynting's vector and the angular momentum of light. Journal of Optics, 17(12), 125610. (doi: 10.1088/2040-8978/17/12/125610)
Sonnleitner, M., Jeffers, J. and Barnett, S. M. (2015) Image retrodiction at low light levels. Optica, 2(11), pp. 950-957. (doi: 10.1364/OPTICA.2.000950)
Potocek, V. and Barnett, S. M. (2015) On the exponential form of the displacement operator for different systems. Physica Scripta, 90(6), 065208. (doi: 10.1088/0031-8949/90/6/065208)
Giovannini, D., Romero, J., Potocek, V., Ferenczi, G., Speirits, F. , Barnett, S. , Faccio, D. and Padgett, M. (2015) Reducing the Free-Space Group Velocity of Single Photons by Transverse Structuring. In: CLEO: QELS - Fundamental Science 2015, San Jose, California, 10-15 May 2015, ISBN 9781557529688 (doi: 10.1364/CLEO_QELS.2015.FTu4A.4)
Donaldson, R. J., Collins, R. J., Eleftheriadou, E., Barnett, S. M. , Jeffers, J. and Buller, G. S. (2015) Experimental implementation of a quantum optical state comparison amplifier. Physical Review Letters, 114(12), 120505. (doi: 10.1103/PhysRevLett.114.120505)
Radwell, N., Clark, T. W., Piccirillo, B., Barnett, S. M. and Franke-Arnold, S. (2015) Spatially dependent electromagnetically induced transparency. Physical Review Letters, 114(12), 123603. (doi: 10.1103/PhysRevLett.114.123603)
Giovannini, D., Romero, J., Potoček, V., Ferenczi, G., Speirits, F. , Barnett, S. M. , Faccio, D. and Padgett, M. J. (2015) Spatially structured photons that travel in free space slower than the speed of light. Science, 347(6224), pp. 857-860. (doi: 10.1126/science.aaa3035) (PMID:25612608)
Barnett, S. M. and Loudon, R. (2015) Theory of radiation pressure on magneto–dielectric materials. New Journal of Physics, 17(6), 063027. (doi: 10.1088/1367-2630/17/6/063027)
Potocek, V. and Barnett, S. M. (2015) Generalized ray optics and orbital angular momentum carrying beams. New Journal of Physics, 17, 103034. (doi: 10.1088/1367-2630/17/10/103034)
2014
Cameron, R. P. and Barnett, S. (2014) Optical activity in the scattering of structured light. Physical Chemistry Chemical Physics, 16(47), pp. 25819-25829. (doi: 10.1039/C4CP03505D)
Greenshields, C. R., Stamps, R. L. , Franke-Arnold, S. and Barnett, S. (2014) Is the angular momentum of an electron conserved in a uniform magnetic field? Physical Review Letters, 113(24), p. 240404. (doi: 10.1103/PhysRevLett.113.240404)
Ferenczi, G., Potoček, V. and Barnett, S. M. (2014) Two-particle multi-mode interference. Journal of Optics, 16(10), p. 105710. (doi: 10.1088/2040-8978/16/10/105710)
Yao, A. M., Brougham, T., Eleftheriadou, E., Padgett, M. J. and Barnett, S. M. (2014) Entropic uncertainty minimum for angle and angular momentum. Journal of Optics, 16(10), p. 105404. (doi: 10.1088/2040-8978/16/10/105404)
Barnett, S. M. (2014) Optical Dirac equation. New Journal of Physics, 16(9), 093008. (doi: 10.1088/1367-2630/16/9/093008)
Brougham, T. and Barnett, S. M. (2014) Cavity-enabled high-dimensional quantum key distribution. Journal of Physics B: Atomic, Molecular and Optical Physics, 47(15), p. 155501. (doi: 10.1088/0953-4075/47/15/155501)
Lavery, M. P. J. , Barnett, S. M. , Speirits, F. C. and Padgett, M. J. (2014) Observation of the rotational Doppler shift of a white-light, orbital-angular-momentum-carrying beam backscattered from a rotating body. Optica, 1(1), pp. 1-4. (doi: 10.1364/OPTICA.1.000001)
Cameron, R. P., Yao, A. M. and Barnett, S. M. (2014) Diffraction gratings for chiral molecules and their applications. Journal of Physical Chemistry A, 118(19), pp. 3472-3478. (doi: 10.1021/jp500319x)
Speirits, F. C. , Lavery, M. P. J. , Padgett, M. J. and Barnett, S. M. (2014) Optical angular momentum in a rotating frame. Optics Letters, 39(10), pp. 2944-2946. (doi: 10.1364/OL.39.002944)
Barnett, S. M. , Harris, N. and Baumberg, J. J. (2014) Molecules in the mirror: how SERS backgrounds arise from the quantum method of images. Physical Chemistry Chemical Physics, 16(14), pp. 6544-6549. (doi: 10.1039/C4CP00093E)
Barnett, S. M. , Cresser, J. D. , Jeffers, J. and Pegg, D. T. (2014) Quantum probability rule: a generalization of the theorems of Gleason and Busch. New Journal of Physics, 16(4), 043025. (doi: 10.1088/1367-2630/16/4/043025)
Barnett, S.M. (2014) Maxwellian theory of gravitational waves and their mechanical properties. New Journal of Physics, 16(2), Art. 023027. (doi: 10.1088/1367-2630/16/2/023027)
Cameron, R.P., Barnett, S.M. and Yao, A.M. (2014) Discriminatory optical force for chiral molecules. New Journal of Physics, 16(013020), (doi: 10.1088/1367-2630/16/1/013020)
Cameron, R.P., Barnett, S.M. and Yao, A.M. (2014) Optical helicity of interfering waves. Journal of Modern Optics, 61(1), pp. 25-31. (doi: 10.1080/09500340.2013.829874)
Phillips, D. B., Lee, M. P., Speirits, F. C. , Barnett, S. M. , Simpson, S. H., Lavery, M. P. J. , Padgett, M. J. and Gibson, G. M. (2014) Rotational Doppler velocimetry to probe the angular velocity of spinning microparticles. Physical Review A: Atomic, Molecular and Optical Physics, 90(1), 011801. (doi: 10.1103/PhysRevA.90.011801)
2013
Barnett, S. M. and Berry, M.V. (2013) Superweak momentum transfer near optical vortices. Journal of Optics, 15(12), p. 125701. (doi: 10.1088/2040-8978/15/12/125701)
Weiss, T., Wong, G.K.L., Biancalana, F., Barnett, S.M. , Xi, X.M. and St. J Russell, P. (2013) Topological Zeeman effect and circular birefringence in twisted photonic crystal fibers. Journal of the Optical Society of America B: Optical Physics, 30(11), pp. 2921-2927. (doi: 10.1364/JOSAB.30.002921)
Speirits, F. C. and Barnett, S. M. (2013) Do waves carrying orbital angular momentum possess azimuthal linear momentum? Physical Review Letters, 111(10), p. 103602. (doi: 10.1103/PhysRevLett.111.103602)
Lavery, M.P.J. , Speirits, F.C. , Barnett, S.M. and Padgett, M.J. (2013) Detection of a spinning object using light's orbital angular momentum. Science, 341(6145), pp. 537-540. (doi: 10.1126/science.1239936)
Dalton, B.J., Garraway, B.M., Jeffers, J. and Barnett, S.M. (2013) Grassmann phase space theory and the Jaynes–Cummings model. Annals of Physics, 334, pp. 100-141. (doi: 10.1016/j.aop.2013.03.010)
Brougham, T., Barnett, S.M. , McCusker, K.T., Kwiat, P.G. and Gauthier, D.J. (2013) Security of high-dimensional quantum key distribution protocols using Franson interferometers. Journal of Physics B: Atomic, Molecular and Optical Physics, 46(10), Art. 104010. (doi: 10.1088/0953-4075/46/10/104010)
Barnett, S.M. (2013) Comment on “Trouble with the Lorentz Law of Force: Incompatibility with Special Relativity and Momentum Conservation”. Physical Review Letters, 110(8), 089402. (doi: 10.1103/PhysRevLett.110.089402)
Barnett, S.M. and Vaccaro, J. (2013) Beyond Landauer erasure. Entropy, 15(11), pp. 4956-4968. (doi: 10.3390/e15114956)
Brougham, T. and Barnett, S.M. (2013) Mutually unbiased measurements for high-dimensional time-bin–based photonic states. EPL (Europhysics Letters), 104(3), Art. 30003. (doi: 10.1209/0295-5075/104/30003)
Eleftheriadou, E., Barnett, S. M. and Jeffers, J. (2013) Quantum optical state comparison amplifier. Physical Review Letters, 111(21), Art. 213601. (doi: 10.1103/PhysRevLett.111.213601)
Romero, J., Giovannini, D., Tasca, D.S., Barnett, S.M. and Padgett, M.J. (2013) Tailored two-photon correlation and fair-sampling: a cautionary tale. New Journal of Physics, 15, 083047. (doi: 10.1088/1367-2630/15/8/083047)
Xi, X.M., Weiss, T., Wong, G.K.L., Biancalana, F., Barnett, S.M. , Padgett, M.J. and St. J. Russell, P. (2013) Optical activity in twisted solid-core photonic crystal fibers. Physical Review Letters, 110(14), Art. 143903. (doi: 10.1103/PhysRevLett.110.143903)
2012
Cameron, R.P. and Barnett, S.M. (2012) Electric–magnetic symmetry and Noether's theorem. New Journal of Physics, 14, p. 123019. (doi: 10.1088/1367-2630/14/12/123019)
Romero, J., Giovannini, D., Franke-Arnold, S. , Barnett, S. M. and Padgett, M. J. (2012) Increasing the Orbital Angular Momentum Bandwidth of Entangled Photons. In: Electro-Optical Remote Sensing, Photonic Technologies, and Applications VI, Edinburgh, UK, 24-27 Sep 2012, 85421S. ISBN 9780819492838 (doi: 10.1117/12.979888)
Miatto, F.M., Lorenzo Pires, H., Barnett, S.M. and Exter, M.P. (2012) Spatial Schmidt modes generated in parametric down-conversion. European Physical Journal D, 66(10), p. 263. (doi: 10.1140/epjd/e2012-30035-3)
Barnett, S. M. , Cameron, R. P. and Yao, A. M. (2012) Duplex symmetry and its relation to the conservation of optical helicity. Physical Review A: Atomic, Molecular and Optical Physics, 86(1), 013845. (doi: 10.1103/PhysRevA.86.013845)
Giovannini, D., Miatto, F.M., Romero, J., Barnett, S.M. , Woerdman, J.P. and Padgett, M.J. (2012) Determining the dimensionality of bipartite orbital-angular-momentum entanglement using multi-sector phase masks. New Journal of Physics, 14, 073046. (doi: 10.1088/1367-2630/14/7/073046)
Miatto, F.M., Giovannini, D., Romero, J., Franke-Arnold, S. , Barnett, S.M. and Padgett, M.J. (2012) Bounds and optimisation of orbital angular momentum bandwidths within parametric down-conversion systems. European Physical Journal D, 66(7), p. 178. (doi: 10.1140/epjd/e2012-20736-x)
Cameron, R. P., Barnett, S. M. and Yao, A. M. (2012) Optical helicity, optical spin and related quantities in electromagnetic theory. New Journal of Physics, 14(5), 053050. (doi: 10.1088/1367-2630/14/5/053050)
Brougham, T. and Barnett, S.M. (2012) Information communicated by entangled photon pairs. Physical Review A: Atomic, Molecular and Optical Physics, 85(3), Art. 032322. (doi: 10.1103/PhysRevA.85.032322)
Leach, J., Warburton, R.E., Ireland, D.G. , Izdebski, F., Barnett, S.M. , Yao, A.M., Buller, G.S. and Padgett, M.J. (2012) Quantum correlations in position, momentum, and intermediate bases for a full optical field of view. Physical Review A: Atomic, Molecular and Optical Physics, 85(1), 013827. (doi: 10.1103/PhysRevA.85.013827)
Barnett, S.M. and Loudon, R. (2012) Optical Thomas-Reiche-Kuhn sum rules. Physical Review Letters, 108(1), 013601. (doi: 10.1103/PhysRevLett.108.013601)
Barnett, S.M. and Phoenix, S.J.D. (2012) Asynchronous quantum key distribution on a relay network. Journal of Modern Optics, 59(15), pp. 1349-1354. (doi: 10.1080/09500340.2012.716460)
Colin, A.J.T., Barnett, S.M. and Jeffers, J. (2012) Measurement-driven dynamics for a coherently-excited atom. Journal of Modern Optics, 59(21), pp. 1803-1815. (doi: 10.1080/09500340.2012.744479)
Izdebski, F., Leach, J., Warburton, R. E., Ireland, D. G. , Barnett, S. M. , Yao, A. M., Buller, G. S. and Padgett, M. J. (2012) Quantum Correlations in Position, Momentum and Intermediate Bases, Measured Using Fiber Arrays. In: SPIE OPTO 2012: Complex Light and Optical Forces VI, San Francisco, CA, USA, 25-26 Jan 2012, 82740E. ISBN 9780819489173 (doi: 10.1117/12.912055)
Romero, J., Giovannini, D., Franke-Arnold, S. , Barnett, S.M. and Padgett, M.J. (2012) Increasing the dimension in high-dimensional two-photon orbital angular momentum entanglement. Physical Review A: Atomic, Molecular and Optical Physics, 86(1), 012334. (doi: 10.1103/PhysRevA.86.012334)
Saunders, D.J., Palsson, M.S., Pryde, G.J., Scott, A.J., Barnett, S.M. and Wiseman, H.M. (2012) The simplest demonstrations of quantum nonlocality. New Journal of Physics, 14(11), Art. 113020. (doi: 10.1088/1367-2630/14/11/113020)
2011
Colin, A.J.T., Barnett, S.M. and Jeffers, J. (2011) Programmed discrimination of qbits with added classical information. European Physical Journal D, 63(3), pp. 463-472. (doi: 10.1140/epjd/e2011-10729-8)
Vaccaro, J.A. and Barnett, S.M. (2011) Information erasure without an energy cost. Proceedings of the Royal Society of London Series A: Mathematical, Physical and Engineering Sciences, 467(2130), pp. 1770-1778. (doi: 10.1098/rspa.2010.0577)
Jack, B., Aursand, P., Franke-Arnold, S. , Ireland, D. , Leach, J., Barnett, S.M. and Padgett, M. (2011) Demonstration of the angular uncertainty principle for single photons. Journal of Optics, 13(6), 064017. (doi: 10.1088/2040-8978/13/6/064017)
Barnett, S.M. (2011) On the six components of optical angular momentum. Journal of Optics, 13(6), 064010. (doi: 10.1088/2040-8978/13/6/064010)
Miatto, F.M., Yao, A.M. and Barnett, S.M. (2011) Full characterization of the quantum spiral bandwidth of entangled biphotons. Physical Review A: Atomic, Molecular and Optical Physics, 83(3), Art. 033816. (doi: 10.1103/PhysRevA.83.033816)
Romero, J., Leach, J., Jack, B., Dennis, M.R., Franke-Arnold, S. , Barnett, S.M. and Padgett, M.J. (2011) Entangled optical vortex links. Physical Review Letters, 106(10), 100407. (doi: 10.1103/PhysRevLett.106.100407) (PMID:21469778)
Štefaňák, M., Barnett, S.M. , Kollár, B., Kiss, T. and Jex, I. (2011) Directional correlations in quantum walks with two particles. New Journal of Physics, 13(3), 033029. (doi: 10.1088/1367-2630/13/3/033029)
Boyd, R.W., Rodenburg, B., Mirhosseini, M. and Barnett, S.M. (2011) Influence of atmospheric turbulence on the propagation of quantum states of light using plane-wave encoding. Optics Express, 19(19), pp. 18310-18317. (doi: 10.1364/OE.19.018310)
Hamilton, C.S., Gábris, A., Jex, I. and Barnett, S.M. (2011) Quantum walk with a four-dimensional coin. New Journal of Physics, 13, Art. 013015. (doi: 10.1088/1367-2630/13/1/013015)
2010
Romero, J., Leach, J., Jack, B., Barnett, S.M. , Padgett, M. and Franke-Arnold, S. (2010) Violation of Leggett inequalities in orbital angular momentum subspaces. New Journal of Physics, 12(12), 123007. (doi: 10.1088/1367-2630/12/12/123007)
Leach, J., Jack, B., Romero, J., Jha, A. K., Yao, A. M., Franke-Arnold, S. , Ireland, D. G. , Boyd, R. W., Barnett, S. M. and Padgett, M. J. (2010) Quantum correlations in optical angle-orbital angular momentum variables. Science, 329(5992), pp. 662-665. (doi: 10.1126/science.1190523) (PMID:20689014)
Mahajan, S., Cole, R.M., Speed, J.D., Pelfrey, S.H., Russell, A.E., Bartlett, P.N., Barnett, S.M. and Baumberg, J.J. (2010) Understanding the surface-enhanced Raman spectroscopy “background”. Journal of Physical Chemistry C, 114(16), pp. 7242-7250. (doi: 10.1021/jp907197b)
Jack, B., Yao, A.M., Leach, J., Romero, J., Franke-Arnold, S. , Ireland, D.G. , Barnett, S.M. and Padgett, M.J. (2010) Entanglement of arbitrary superpositions of modes within two-dimensional orbital angular momentum state spaces. Physical Review A: Atomic, Molecular and Optical Physics, 81(4), 043844. (doi: 10.1103/PhysRevA.81.043844)
Barnett, S.M. and Loudon, R. (2010) The enigma of optical momentum in a medium. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 368(1914), pp. 927-939. (doi: 10.1098/rsta.2009.0207)
Barnett, S.M. (2010) Resolution of the Abraham-Minkowski dilemma. Physical Review Letters, 104(7), (doi: 10.1103/PhysRevLett.104.070401)
Jha, A. K., Leach, J., Jack, B., Franke-Arnold, S. , Barnett, S. M. , Boyd, R. W. and Padgett, M. J. (2010) Angular two-photon interference and angular two-qubit states. Physical Review Letters, 104(1), Art. 010501. (doi: 10.1103/PhysRevLett.104.010501)
Barnett, S.M. (2010) On the recoil and Doppler shifts. Journal of Modern Optics, 57(14-15), pp. 1445-1447. (doi: 10.1080/09500341003605437)
Barnett, S.M. (2010) Quantum state comparison and the universal-NOT operation. Journal of Modern Optics, 57(3), pp. 227-231. (doi: 10.1080/09500340903045728)
Barnett, S.M. (2010) Random qubit-states and how best to measure them. Journal of Modern Optics, 57(3), pp. 232-238. (doi: 10.1080/09500340903082655)
Barnett, S.M. (2010) Rotation of electromagnetic fields and the nature of optical angular momentum. Journal of Modern Optics, 57(14-15), pp. 1339-1343. (doi: 10.1080/09500341003654427)
Boyd, R. W., Leach, J., Jack, B., Romero, J., Jha, A. K., Yao, A. M., Franke-Arnold, S. , Ireland, D. G. , Barnett, S. M. and Padgett, M. J. (2010) New twist on light beams for quantum information science. Optics and Photonics News, 21(12), p. 48. (doi: 10.1364/OPN.21.12.000048)
Brougham, T., Barnett, S.M. and Jex, I. (2010) Interference of composite bosons. Journal of Modern Optics, 57(7), pp. 587-594. (doi: 10.1080/09500340.2010.481731)
Hillery, M., Andersson, E., Barnett, S.M. and Oi, D. (2010) Decision problems with quantum black boxes. Journal of Modern Optics, 57(3), pp. 244-252. (doi: 10.1080/09500340903203129)
Leach, J., Jack, B., Romero, J., Ireland, D. , Franke-Arnold, S. , Barnett, S. and Padgett, M. (2010) Quantum Imaging and Orbital Angular Momentum. In: SPIE OPTO 2010: Complex Light and Optical Forces IV, San Francisco, CA, USA, 27-28 Jan 2010, 76130L. ISBN 9780819480095 (doi: 10.1117/12.845250)
2009
Brougham, T., Andersson, E. and Barnett, S.M. (2009) Entropic uncertainties for joint quantum measurements. Physical Review A: Atomic, Molecular and Optical Physics, 80(4), 042106. (doi: 10.1103/PhysRevA.80.042106)
Jack, B., Leach, J., Romero, J., Franke-Arnold, S., Ritsch-Marte, M., Barnett, S.M. and Padgett, M.J. (2009) Holographic ghost imaging and the violation of a Bell inequality. Physical Review Letters, 103(8), 083602. (doi: 10.1103/PhysRevLett.103.083602) (PMID:19792729)
Hinds, E. and Barnett, S.M. (2009) Momentum exchange between light and a single atom: Abraham or Minkowski? Physical Review Letters, 102(5), Art. 050403. (doi: 10.1103/PhysRevLett.102.050403)
Barnett, S.M. and Croke, S. (2009) On the conditions for discrimination between quantum states with minimum error. Journal of Physics A: Mathematical and Theoretical, 42(6), 062001. (doi: 10.1088/1751-8113/42/6/062001)
Barnett, S.M. and Croke, S. (2009) Quantum state discrimination. Advances in Optics and Photonics, 1(2), pp. 238-278. (doi: 10.1364/AOP.1.000238)
2008
Leach, J., Wright, A.J., Götte, J.B. , Girkin, J.M., Allen, L., Franke-Arnold, S., Barnett, S.m. and Padgett, M.J. (2008) 'Aether drag' and moving images. Physical Review Letters, 100(15), p. 153902. (doi: 10.1103/PhysRevLett.100.153902)
Croke, S. , Barnett, S.M. and Stenholm, S. (2008) Linear transformations of quantum states. Annals of Physics, 323(4), pp. 893-906. (doi: 10.1016/j.aop.2007.06.001)
Croke, S. , Andersson, E. and Barnett, S.M. (2008) No-signaling bound on quantum state discrimination. Physical Review A: Atomic, Molecular and Optical Physics, 77(1), 012113. (doi: 10.1103/PhysRevA.77.012113)
Götte, J.B. , O'Holleran, K., Preece, D., Flossmann, F., Franke-Arnold, S. , Barnett, S.M. and Padgett, M.J. (2008) Light beams with fractional orbital angular momentum and their vortex structure. Optics Express, 16(2), pp. 993-1006. (doi: 10.1364/OE.16.000993)
2007
Croke, S. , Mosley, P.J., Barnett, S.M. and Walmsley, I.A. (2007) Maximum confidence measurements and their optical implementation. European Physical Journal D, 41(3), pp. 589-598. (doi: 10.1140/epjd/e2006-00265-1)
Gotte, J.B. , Franke-Arnold, S. , Zambrini, R. and Barnett, S.M. (2007) Quantum formulation of fractional orbital angular momentum. Journal of Modern Optics, 54, pp. 1723-1738. (doi: 10.1080/09500340601156827)
Padgett, M. , Leach, J., Götte, J. , Franke-Arnold, S. , Allen, L., Wright, A., Girkin, J. and Barnett, S. (2007) Moving Images - Are they Laterally Displaced by Transmission Through a Stationary Glass Window? In: Conference on Coherence and Quantum Optics, CQO 2007, Rochester, NY, 13 June 2007, ISBN 978155752849-0
Roychoudhuri, C. et al. (2007) The lateral displacement of a moving image on transmission through a stationary glass window. Proceedings of the SPIE: The International Society for Optical Engineering, 6664, 66640D. (doi: 10.1117/12.735556)
2006
Yao, E., Franke-Arnold, S. , Courtial, J., Padgett, M. J. and Barnett, S. M. (2006) Observation of quantum entanglement using spatial light modulators. Optics Express, 14(26), pp. 13089-13094. (doi: 10.1364/OE.14.013089)
Loudon, R. and Barnett, S. M. (2006) Theory of the radiation pressure on dielectric slabs, prisms and single surfaces. Optics Express, 14(24), pp. 11855-11869. (doi: 10.1364/OE.14.011855)
Padgett, M. , Whyte, G., Girkin, J., Wright, A., Allen, L., Ohberg, P. and Barnett, S. M. (2006) Polarization and image rotation induced by a rotating dielectric rod: an optical angular momentum interpretation. Optics Letters, 31, pp. 2205-2207. (doi: 10.1364/OL.31.002205)
Brougham, T., Andersson, E. and Barnett, S.M. (2006) Cloning and joint measurements of incompatible components of spin. Physical Review A: Atomic, Molecular and Optical Physics, 73(6), 062319. (doi: 10.1103/PhysRevA.73.062319)
Götte, J. B. , Radmore, P. M., Zambrini, R. and Barnett, S. (2006) Angular minimum uncertainty states with large uncertainties. Journal of Physics B: Atomic, Molecular and Optical Physics, 39(12), pp. 2791-2801. (doi: 10.1088/0953-4075/39/12/013)
Zambrini, R. and Barnett, S. M. (2006) Quasi-intrinsic angular momentum and the measurement of its spectrum. Physical Review Letters, 96(11), p. 113901. (doi: 10.1103/PhysRevLett.96.113901)
Götte, J.B. , Franke-Arnold, S. and Barnett, S. M. (2006) Angular EPR paradox. Journal of Modern Optics, 53(5-6), pp. 627-645. (doi: 10.1080/009500340500227075)
Croke, S. , Andersson, E., Barnett, S.M. , Gilson, C.R. and Jeffers, J. (2006) Maximum confidence quantum measurements. Physical Review Letters, 96(7), 070401. (doi: 10.1103/PhysRevLett.96.070401)
Götte, J. B. , Zambrini, R., Franke-Arnold, S. and Barnett, S. M. (2006) Erratum. Large-uncertainty intelligent states for angular momentum and angle. Journal of Physics B: Atomic, Molecular and Optical Physics, 39(9), pp. 2315-1251. (doi: 10.1088/0953-4075/39/9/C01)
Mosley, P., Croke, S. , Walmsley, I. and Barnett, S.M. (2006) Experimental realization of maximum confidence quantum state discrimination for the extraction of quantum information. Physical Review Letters, 97(19), p. 193601. (doi: 10.1103/PhysRevLett.97.193601)
2005
Götte, J. B. , Zambrini, R., Franke-Arnold, S. and Barnett, S. M. (2005) Large-uncertainty intelligent states for angular momentum and angle. Journal of Optics B: Quantum and Semiclassical Optics, 7(12), S563-S571. (doi: 10.1088/1464-4266/7/12/019)
2004
Götte, J. B. , Franke-Arnold, S. and Barnett, S. M. (2004) Angular EPR paradox. In: Seventh International Conference on Quantum Communication, Measurement and Computing, Glasgow, UK, 25-29 Jul 2004, pp. 273-276. ISBN 9780735402164 (doi: 10.1063/1.1834433)
Franke-Arnold, S., Barnett, S. M. , Yao, E., Leach, J., Courtial, J. and Padgett, M. (2004) Uncertainty principle for angular position and angular momentum. New Journal of Physics, 6(103), (doi: 10.1088/1367-2630/6/1/103)
Leach, J., Courtial, J. , Skeldon, K., Barnett, S. M. , Franke-Arnold, S. and Padgett, M. J. (2004) Interferometric methods to measure orbital and spin, or the total angular momentum of a single photon. Physical Review Letters, 92(1), 013601. (doi: 10.1103/PhysRevLett.92.013601)
Gibson, G. , Courtial, J. , Vasnetsov, M., Barnett, S. , Franke-Arnold, S. and Padgett, M. (2004) Increasing the Data Density of Free-space Optical Communications Using Orbital Angular Momentum. In: Free-Space Laser Communications IV, Denver, CO, USA, 02-06 Aug 2004, pp. 367-373. (doi: 10.1117/12.557176)
2003
Courtial, J. , Padgett, M. , Leach, J., Yao, E., Barnett, S. and Franke-Arnold, S. (2003) Measuring the topological charge of optical vortices: from the orbital angular momentum of individual photons to the angular uncertainty principle. In: 1st International Conference on Advanced Optoelectronics and Lasers/1st Workshop on Precision Oscillations in Electronics and Optics, Alushta, Ukraine, 16-20 Sep 2003, ISBN 0780379489 (doi: 10.1109/CAOL.2003.1250503)
Leach, J., Franke-Arnold, S. , Courtial, J. , Yao, E., Barnett, S. and Padgett, M. (2003) Measurement of the Angle-angular Momentum Uncertainty of a Light Beam. In: 5th International Workshop on Laser and Fiber-Optical Networks Modeling, Alushta, Ukraine, 19-20 Sep 2003, p. 145. ISBN 9780780377097 (doi: 10.1109/LFNM.2003.1246106)
2002
Leach, J., Padgett, M. J. , Barnett, S. M. , Franke-Arnold, S. and Courtial, J. (2002) Measuring the orbital angular momentum of a single photon. Physical Review Letters, 88(25), p. 257901. (doi: 10.1103/PhysRevLett.88.257901)
Franke-Arnold, S. , Barnett, S. M. , Padgett, M. and Allen, L. (2002) Two-photon entanglement of orbital angular momentum states. Physical Review A: Atomic, Molecular and Optical Physics, 65(3), art 033823. (doi: 10.1103/PhysRevA.65.033823)
2000
Franke-Arnold, S. , Huyet, G. and Barnett, S. M. (2000) Hardy state correlations for two trapped ions. Journal of Modern Optics, 47(2-3), pp. 145-153. (doi: 10.1080/095003400148114)
1996
Franke, S. and Barnett, S. M. (1996) Angular momentum in spontaneous emission. Journal of Physics B: Atomic, Molecular and Optical Physics, 29(10), pp. 2141-2150. (doi: 10.1088/0953-4075/29/10/022)
Articles
Barnett, S. M. , Cresser, J. D. and Croke, S. (2024) Revisiting the damped quantum harmonic oscillator. Physica Scripta, 99(2), 025109. (doi: 10.1088/1402-4896/ad1902)
Barnett, S. M. (2023) Vacuum representations of blackbody radiation. European Physical Journal: Special Topics, (doi: 10.1140/epjs/s11734-023-00987-2) (Early Online Publication)
Barnett, S. M. (2023) Vacuum representations of blackbody radiation. European Physical Journal: Special Topics, (doi: 10.1140/epjs/s11734-023-00987-2)
McWilliam, A., Cisowski, C. M., Ye, Z., Speirits, F. C. , Götte, J. B. , Barnett, S. M. and Franke-Arnold, S. (2023) Topological approach of characterizing optical skyrmions and multi-skyrmions. Laser and Photonics Reviews, 17(9), 2300155. (doi: 10.1002/lpor.202300155)
Barnett, S.M. , Speirits, F.C. and Götte, J.B. (2023) On lines of constant polarisation in structured light beams. EPL (Europhysics Letters), 143(3), 35002. (doi: 10.1209/0295-5075/ace8b7)
Barnett, S. M. and Dalton, B. J. (2023) Glauber P-representations for fermions. Physica Scripta, 98(4), 044006. (doi: 10.1088/1402-4896/acc432)
Barnett, S. M. (2022) On single-photon and classical interference. Physica Scripta, 97(11), 114004.
Barnett, S. M. , Speirits, F. C. and Babiker, M. (2022) Optical angular momentum in atomic transitions: a paradox. Journal of Physics A: Mathematical and Theoretical, 55(23), 234008. (doi: 10.1088/1751-8121/ac6bd1)
Strasser, F., Barnett, S. M. , Ritsch-Marte, M. and Thalhammer, G. (2022) Generally applicable holographic torque measurement for optically trapped particles. Physical Review Letters, 128(21), 213604. (doi: 10.1103/PhysRevLett.128.213604)
Westerberg, N. , Messinger, A. and Barnett, S. M. (2022) Duality, decay rates, and local-field models in macroscopic QED. Physical Review A: Atomic, Molecular and Optical Physics, 105(5), 053704. (doi: 10.1103/PhysRevA.105.053704)
Hamilton, C. S., Christ, R., Barkhofen, S., Barnett, S. M. , Jex, I. and Silberhorn, C. (2022) Quantum-state creation in nonlinear-waveguide arrays. Physical Review A: Atomic, Molecular and Optical Physics, 105(4), 042622. (doi: 10.1103/PhysRevA.105.042622)
Barnett, S. M. , Jeffers, J. and Pegg, D. T. (2021) Quantum retrodiction: foundations and controversies. Symmetry, 13(4), 586. (doi: 10.3390/sym13040586)
Gao, S., Speirits, F. C. , Castellucci, F., Franke-Arnold, S. , Barnett, S. M. and Götte, J. B. (2020) Paraxial skyrmionic beams. Physical Review A: Atomic, Molecular and Optical Physics, 102, 053513. (doi: 10.1103/PhysRevA.102.053513)
Kelly, C. et al. (2020) Controlling the symmetry of inorganic ionic nanofilms with optical chirality. Nature Communications, 11, 5169. (doi: 10.1038/s41467-020-18869-9) (PMID:33057000) (PMCID:PMC7560753)
Li, S., Zhang, S., Feng, X., Barnett, S. M. , Zhang, W., Cui, K., Liu, F. and Huang, Y. (2020) Programmable coherent linear quantum operations with high-dimensional optical spatial modes. Physical Review Applied, 14(2), 024027. (doi: 10.1103/PhysRevApplied.14.024027)
Messinger, A., Westerberg, N. and Barnett, S. M. (2020) Spontaneous emission in anisotropic dielectrics. Physical Review A: Atomic, Molecular and Optical Physics, 102, 013721. (doi: 10.1103/PhysRevA.102.013721)
Messinger, A., Ritboon, A., Crimin, F. , Croke, S. and Barnett, S. (2020) Coherence and catalysis in the Jaynes-Cummings model. New Journal of Physics, 22, 043008. (doi: 10.1088/1367-2630/ab7607)
Black, A. N., Giese, E., Braverman, B., Zollo, N., Barnett, S. M. and Boyd, R. W. (2019) Quantum, nonlocal aberration cancellation. Physical Review Letters, 123, 143603. (doi: 10.1103/PhysRevLett.123.143603)
Zhao, P., Li, S., Feng, X., Barnett, S. M. , Zhang, W., Cui, K., Liu, F. and Huang, Y. (2019) Universal linear optical operations on discrete phase-coherent spatial modes with a fixed and non-cascaded setup. Journal of Optics, 21(10), 104003. (doi: 10.1088/2040-8986/ab3d8b)
Flatt, K., Barnett, S. M. and Croke, S. (2019) Multiple-copy state discrimination of noisy qubits. Physical Review A: Atomic, Molecular and Optical Physics, 100, 032122. (doi: 10.1103/PhysRevA.100.032122)
Crimin, F. , Mackinnon, N., Götte, J. B. and Barnett, S. (2019) On the conservation of helicity in a chiral medium. Journal of Optics, 21(9), 094003. (doi: 10.1088/2040-8986/ab387c)
Leach, J., Wright, A.J., Götte, J. , Girkin, J.M., Allen, L., Franke-Arnold, S. , Barnett, S.M. and Padgett, M.J. (2019) Leach et al. Reply:. Physical Review Letters, 122(13), 139402. (doi: 10.1103/PhysRevLett.122.139402)
Barnett, S. M. , Brougham, T., Croke, S. and Phoenix, S. J.D. (2019) Optimized attacks on twin-field quantum key distribution. Journal of the Optical Society of America B: Optical Physics, 36(3), B122-B129. (doi: 10.1364/JOSAB.36.00B122)
Crimin, F. , Mackinnon, N., Goette, J. B. and Barnett, S. M. (2019) Optical helicity and chirality: conservation and sources. Applied Sciences, 9(5), 828. (doi: 10.3390/app9050828)
Ritboon, A., Croke, S. and Barnett, S. M. (2019) Optical angular momentum transfer on total internal reflection. Journal of the Optical Society of America B: Optical Physics, 36(2), pp. 482-492. (doi: 10.1364/JOSAB.36.000482)
Marichez, V., Tassoni, A., Cameron, R. P., Barnett, S. M. , Eichhorn, R., Genet, C. and Hermans, T. M. (2019) Mechanical chiral resolution. Soft Matter, 15, pp. 4593-4608. (doi: 10.1039/C9SM00778D) (PMID:31147662)
Flatt, K., Croke, S. and Barnett, S. M. (2018) Two-time state formalism for quantum eavesdropping. Physical Review A: Atomic, Molecular and Optical Physics, 98, 052339. (doi: 10.1103/PhysRevA.98.052339)
Sonnleitner, M. and Barnett, S. M. (2018) Mass-energy and anomalous friction in quantum optics. Physical Review A: Atomic, Molecular and Optical Physics, 98, 042106. (doi: 10.1103/PhysRevA.98.042106)
Vaccaro, J., Croke, S. and Barnett, S. (2018) Is coherence catalytic? Journal of Physics A: Mathematical and Theoretical, 51(41), 414008. (doi: 10.1088/1751-8121/aac112)
Barnett, S. M. (2018) Is there a problem with our Hamiltonians for quantum nonlinear optical processes? Journal of Russian Laser Research, 39(4), pp. 318-324. (doi: 10.1007/s10946-018-9725-1)
Barnett, S. M. (2018) Schrödinger picture analysis of the beam splitter: an application of the Janszky representation. Journal of Russian Laser Research, 39(4), pp. 340-348. (doi: 10.1007/s10946-018-9727-z)
Barnett, S. M. , Ferenczi, G., Gilson, C. R. and Speirits, F. C. (2018) Statistics of photon-subtracted and photon-added states. Physical Review A: Atomic, Molecular and Optical Physics, 98(1), 013809. (doi: 10.1103/PhysRevA.98.013809)
Weir, G., Hughes, C., Barnett, S. M. and Croke, S. (2018) Optimal measurement strategies for the trine states with arbitrary prior probabilities. Quantum Science and Technology, 3(3), 035003. (doi: 10.1088/2058-9565/aabc68)
Barnett, S. M. and Sonnleitner, M. (2018) Vacuum friction. Journal of Modern Optics, 65(1), pp. 23-29. (doi: 10.1080/09500340.2017.1374482)
Barnett, S. M. and Sonnleitner, M. (2018) The vacuum friction paradox and related puzzles. Contemporary Physics, 59(2), pp. 145-154. (doi: 10.1080/00107514.2018.1439333)
Flatt, K., Barnett, S. M. and Croke, S. (2017) Gleason-Busch theorem for sequential measurements. Physical Review A: Atomic, Molecular and Optical Physics, 96(6), 062125. (doi: 10.1103/PhysRevA.96.062125)
Sonnleitner, M. and Barnett, S. M. (2017) The Röntgen interaction and forces on dipoles in time-modulated optical fields. European Physical Journal D, 71, 336. (doi: 10.1140/epjd/e2017-80273-8)
Barnett, S. M. et al. (2017) Journeys from quantum optics to quantum technology. Progress in Quantum Electronics, 54, pp. 19-45. (doi: 10.1016/j.pquantelec.2017.07.002)
Weir, G., Barnett, S. M. and Croke, S. (2017) Optimal discrimination of single-qubit mixed states. Physical Review A: Atomic, Molecular and Optical Physics, 96(2), 022312. (doi: 10.1103/PhysRevA.96.022312)
Barnett, S. M. (2017) Barnett replies. Physical Review Letters, 119(2), 029502. (doi: 10.1103/PhysRevLett.119.029502) (PMID:28753329)
Ritboon, A., Croke, S. and Barnett, S. (2017) Proposed optical realisation of a two photon, four-qubit entangled χ state. Journal of Optics, 19(7), 075201. (doi: 10.1088/2040-8986/aa72af)
Dalton, B. J., Jeffers, J. and Barnett, S. M. (2017) Grassmann phase space theory for fermions. Fortschritte der Physik, 65(6-8), 1600038. (doi: 10.1002/prop.201600038)
Croke, S. , Barnett, S. M. and Weir, G. (2017) Optimal sequential measurements for bipartite state discrimination. Physical Review A: Atomic, Molecular and Optical Physics, 95(5), 052308. (doi: 10.1103/PhysRevA.95.052308)
Trautmann, N., Ferenczi, G., Croke, S. and Barnett, S. M. (2017) Holographic quantum imaging: reconstructing spatial properties via two-particle interference. Journal of Optics, 19(5), 054005. (doi: 10.1088/2040-8986/aa67b6)
Phillips, D. B., Sun, M.-j., Taylor, J. M. , Edgar, M. P., Barnett, S. M. , Gibson, G. M. and Padgett, M. J. (2017) Adaptive foveated single-pixel imaging with dynamic supersampling. Science Advances, 3(4), e1601782. (doi: 10.1126/sciadv.1601782)
Barnett, S. M. (2017) Relativistic electron vortices. Physical Review Letters, 118(11), 114802. (doi: 10.1103/PhysRevLett.118.114802)
Speirits, F. C. , Sonnleitner, M. and Barnett, S. M. (2017) From retrodiction to Bayesian quantum imaging. Journal of Optics, 19(4), 044001. (doi: 10.1088/2040-8986/aa5ccf)
Wang, Y., Potoček, V., Barnett, S. M. and Feng, X. (2017) Programmable holographic technique for implementing unitary and nonunitary transformations. Physical Review A: Atomic, Molecular and Optical Physics, 95(3), 033827. (doi: 10.1103/PhysRevA.95.033827)
Barnett, S. M. , Babiker, M. and Padgett, M. J. (2017) Optical orbital angular momentum. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 375(2087), 20150444. (doi: 10.1098/rsta.2015.0444) (PMID:28069775) (PMCID:PMC5247487)
Sonnleitner, M., Trautmann, N. and Barnett, S. M. (2017) Will a decaying atom feel a friction force? Physical Review Letters, 118(5), 053601. (doi: 10.1103/PhysRevLett.118.053601) (PMID:28211712)
Cameron, R. P., Götte, J. B. , Barnett, S. M. and Yao, A. M. (2017) Chirality and the angular momentum of light. Proceedings of the Royal Society of London Series A: Mathematical, Physical and Engineering Sciences, 375, 20150433. (doi: 10.1098/rsta.2015.0433) (PMID:28069764)
Dalton, B.J., Jeffers, J. and Barnett, S.M. (2017) Grassmann phase space methods for fermions. II. Field theory. Annals of Physics, 377, pp. 268-310. (doi: 10.1016/j.aop.2016.12.026)
Croke, S. and Barnett, S. M. (2017) Difficulty of distinguishing product states locally. Physical Review A: Atomic, Molecular and Optical Physics, 95(1), 012337. (doi: 10.1103/PhysRevA.95.012337)
Brougham, T., Wildfeuer, C. F., Barnett, S. M. and Gauthier, D. J. (2016) The information of high-dimensional time-bin encoded photons. European Physical Journal D, 70(10), 214. (doi: 10.1140/epjd/e2016-70357-4)
Cameron, R. B., Götte, J. B. and Barnett, S. M. (2016) Chiral rotational spectroscopy. Physical Review A: Atomic, Molecular and Optical Physics, 94(3), 032505. (doi: 10.1103/PhysRevA.94.032505)
Cameron, R. P., Goette, J. B. , Barnett, S. M. and Cotter, J.P. (2016) Matter-wave grating distinguishing conservative and dissipative interactions. Physical Review A: Atomic, Molecular and Optical Physics, 64, 013604. (doi: 10.1103/PhysRevA.94.013604)
Dalton, B.J., Jeffers, J. and Barnett, S.M. (2016) Grassmann phase space methods for fermions. I. Mode theory. Annals of Physics, 370, pp. 12-66. (doi: 10.1016/j.aop.2016.03.006)
Barnett, S. M. , Allen, L., Cameron, R. P., Gilson, C. R. , Padgett, M. J. , Speirits, F. C. and Yao, A. M. (2016) On the natures of the spin and orbital parts of optical angular momentum. Journal of Optics, 18(6), 064004. (doi: 10.1088/2040-8978/18/6/064004)
Barnett, S. M. and Cameron, R. P. (2016) Reply to comment on `Energy conservation and the constitutive relations in chiral and non-reciprocal media'. Journal of Optics, 18(6), 068002. (doi: 10.1088/2040-8978/18/6/068002)
Barnett, S. M. and Cameron, R. P. (2016) Energy conservation and the constitutive relations in chiral and non-reciprocal media. Journal of Optics, 18(1), 015404. (doi: 10.1088/2040-8978/18/1/015404)
Cameron, R. P., Speirits, F. C. , Gilson, C. R. , Allen, L. and Barnett, S. M. (2015) The azimuthal component of Poynting's vector and the angular momentum of light. Journal of Optics, 17(12), 125610. (doi: 10.1088/2040-8978/17/12/125610)
Sonnleitner, M., Jeffers, J. and Barnett, S. M. (2015) Image retrodiction at low light levels. Optica, 2(11), pp. 950-957. (doi: 10.1364/OPTICA.2.000950)
Potocek, V. and Barnett, S. M. (2015) On the exponential form of the displacement operator for different systems. Physica Scripta, 90(6), 065208. (doi: 10.1088/0031-8949/90/6/065208)
Donaldson, R. J., Collins, R. J., Eleftheriadou, E., Barnett, S. M. , Jeffers, J. and Buller, G. S. (2015) Experimental implementation of a quantum optical state comparison amplifier. Physical Review Letters, 114(12), 120505. (doi: 10.1103/PhysRevLett.114.120505)
Radwell, N., Clark, T. W., Piccirillo, B., Barnett, S. M. and Franke-Arnold, S. (2015) Spatially dependent electromagnetically induced transparency. Physical Review Letters, 114(12), 123603. (doi: 10.1103/PhysRevLett.114.123603)
Giovannini, D., Romero, J., Potoček, V., Ferenczi, G., Speirits, F. , Barnett, S. M. , Faccio, D. and Padgett, M. J. (2015) Spatially structured photons that travel in free space slower than the speed of light. Science, 347(6224), pp. 857-860. (doi: 10.1126/science.aaa3035) (PMID:25612608)
Barnett, S. M. and Loudon, R. (2015) Theory of radiation pressure on magneto–dielectric materials. New Journal of Physics, 17(6), 063027. (doi: 10.1088/1367-2630/17/6/063027)
Potocek, V. and Barnett, S. M. (2015) Generalized ray optics and orbital angular momentum carrying beams. New Journal of Physics, 17, 103034. (doi: 10.1088/1367-2630/17/10/103034)
Cameron, R. P. and Barnett, S. (2014) Optical activity in the scattering of structured light. Physical Chemistry Chemical Physics, 16(47), pp. 25819-25829. (doi: 10.1039/C4CP03505D)
Greenshields, C. R., Stamps, R. L. , Franke-Arnold, S. and Barnett, S. (2014) Is the angular momentum of an electron conserved in a uniform magnetic field? Physical Review Letters, 113(24), p. 240404. (doi: 10.1103/PhysRevLett.113.240404)
Ferenczi, G., Potoček, V. and Barnett, S. M. (2014) Two-particle multi-mode interference. Journal of Optics, 16(10), p. 105710. (doi: 10.1088/2040-8978/16/10/105710)
Yao, A. M., Brougham, T., Eleftheriadou, E., Padgett, M. J. and Barnett, S. M. (2014) Entropic uncertainty minimum for angle and angular momentum. Journal of Optics, 16(10), p. 105404. (doi: 10.1088/2040-8978/16/10/105404)
Barnett, S. M. (2014) Optical Dirac equation. New Journal of Physics, 16(9), 093008. (doi: 10.1088/1367-2630/16/9/093008)
Brougham, T. and Barnett, S. M. (2014) Cavity-enabled high-dimensional quantum key distribution. Journal of Physics B: Atomic, Molecular and Optical Physics, 47(15), p. 155501. (doi: 10.1088/0953-4075/47/15/155501)
Lavery, M. P. J. , Barnett, S. M. , Speirits, F. C. and Padgett, M. J. (2014) Observation of the rotational Doppler shift of a white-light, orbital-angular-momentum-carrying beam backscattered from a rotating body. Optica, 1(1), pp. 1-4. (doi: 10.1364/OPTICA.1.000001)
Cameron, R. P., Yao, A. M. and Barnett, S. M. (2014) Diffraction gratings for chiral molecules and their applications. Journal of Physical Chemistry A, 118(19), pp. 3472-3478. (doi: 10.1021/jp500319x)
Speirits, F. C. , Lavery, M. P. J. , Padgett, M. J. and Barnett, S. M. (2014) Optical angular momentum in a rotating frame. Optics Letters, 39(10), pp. 2944-2946. (doi: 10.1364/OL.39.002944)
Barnett, S. M. , Harris, N. and Baumberg, J. J. (2014) Molecules in the mirror: how SERS backgrounds arise from the quantum method of images. Physical Chemistry Chemical Physics, 16(14), pp. 6544-6549. (doi: 10.1039/C4CP00093E)
Barnett, S. M. , Cresser, J. D. , Jeffers, J. and Pegg, D. T. (2014) Quantum probability rule: a generalization of the theorems of Gleason and Busch. New Journal of Physics, 16(4), 043025. (doi: 10.1088/1367-2630/16/4/043025)
Barnett, S.M. (2014) Maxwellian theory of gravitational waves and their mechanical properties. New Journal of Physics, 16(2), Art. 023027. (doi: 10.1088/1367-2630/16/2/023027)
Cameron, R.P., Barnett, S.M. and Yao, A.M. (2014) Discriminatory optical force for chiral molecules. New Journal of Physics, 16(013020), (doi: 10.1088/1367-2630/16/1/013020)
Cameron, R.P., Barnett, S.M. and Yao, A.M. (2014) Optical helicity of interfering waves. Journal of Modern Optics, 61(1), pp. 25-31. (doi: 10.1080/09500340.2013.829874)
Phillips, D. B., Lee, M. P., Speirits, F. C. , Barnett, S. M. , Simpson, S. H., Lavery, M. P. J. , Padgett, M. J. and Gibson, G. M. (2014) Rotational Doppler velocimetry to probe the angular velocity of spinning microparticles. Physical Review A: Atomic, Molecular and Optical Physics, 90(1), 011801. (doi: 10.1103/PhysRevA.90.011801)
Barnett, S. M. and Berry, M.V. (2013) Superweak momentum transfer near optical vortices. Journal of Optics, 15(12), p. 125701. (doi: 10.1088/2040-8978/15/12/125701)
Weiss, T., Wong, G.K.L., Biancalana, F., Barnett, S.M. , Xi, X.M. and St. J Russell, P. (2013) Topological Zeeman effect and circular birefringence in twisted photonic crystal fibers. Journal of the Optical Society of America B: Optical Physics, 30(11), pp. 2921-2927. (doi: 10.1364/JOSAB.30.002921)
Speirits, F. C. and Barnett, S. M. (2013) Do waves carrying orbital angular momentum possess azimuthal linear momentum? Physical Review Letters, 111(10), p. 103602. (doi: 10.1103/PhysRevLett.111.103602)
Lavery, M.P.J. , Speirits, F.C. , Barnett, S.M. and Padgett, M.J. (2013) Detection of a spinning object using light's orbital angular momentum. Science, 341(6145), pp. 537-540. (doi: 10.1126/science.1239936)
Dalton, B.J., Garraway, B.M., Jeffers, J. and Barnett, S.M. (2013) Grassmann phase space theory and the Jaynes–Cummings model. Annals of Physics, 334, pp. 100-141. (doi: 10.1016/j.aop.2013.03.010)
Brougham, T., Barnett, S.M. , McCusker, K.T., Kwiat, P.G. and Gauthier, D.J. (2013) Security of high-dimensional quantum key distribution protocols using Franson interferometers. Journal of Physics B: Atomic, Molecular and Optical Physics, 46(10), Art. 104010. (doi: 10.1088/0953-4075/46/10/104010)
Barnett, S.M. (2013) Comment on “Trouble with the Lorentz Law of Force: Incompatibility with Special Relativity and Momentum Conservation”. Physical Review Letters, 110(8), 089402. (doi: 10.1103/PhysRevLett.110.089402)
Barnett, S.M. and Vaccaro, J. (2013) Beyond Landauer erasure. Entropy, 15(11), pp. 4956-4968. (doi: 10.3390/e15114956)
Brougham, T. and Barnett, S.M. (2013) Mutually unbiased measurements for high-dimensional time-bin–based photonic states. EPL (Europhysics Letters), 104(3), Art. 30003. (doi: 10.1209/0295-5075/104/30003)
Eleftheriadou, E., Barnett, S. M. and Jeffers, J. (2013) Quantum optical state comparison amplifier. Physical Review Letters, 111(21), Art. 213601. (doi: 10.1103/PhysRevLett.111.213601)
Romero, J., Giovannini, D., Tasca, D.S., Barnett, S.M. and Padgett, M.J. (2013) Tailored two-photon correlation and fair-sampling: a cautionary tale. New Journal of Physics, 15, 083047. (doi: 10.1088/1367-2630/15/8/083047)
Xi, X.M., Weiss, T., Wong, G.K.L., Biancalana, F., Barnett, S.M. , Padgett, M.J. and St. J. Russell, P. (2013) Optical activity in twisted solid-core photonic crystal fibers. Physical Review Letters, 110(14), Art. 143903. (doi: 10.1103/PhysRevLett.110.143903)
Cameron, R.P. and Barnett, S.M. (2012) Electric–magnetic symmetry and Noether's theorem. New Journal of Physics, 14, p. 123019. (doi: 10.1088/1367-2630/14/12/123019)
Miatto, F.M., Lorenzo Pires, H., Barnett, S.M. and Exter, M.P. (2012) Spatial Schmidt modes generated in parametric down-conversion. European Physical Journal D, 66(10), p. 263. (doi: 10.1140/epjd/e2012-30035-3)
Barnett, S. M. , Cameron, R. P. and Yao, A. M. (2012) Duplex symmetry and its relation to the conservation of optical helicity. Physical Review A: Atomic, Molecular and Optical Physics, 86(1), 013845. (doi: 10.1103/PhysRevA.86.013845)
Giovannini, D., Miatto, F.M., Romero, J., Barnett, S.M. , Woerdman, J.P. and Padgett, M.J. (2012) Determining the dimensionality of bipartite orbital-angular-momentum entanglement using multi-sector phase masks. New Journal of Physics, 14, 073046. (doi: 10.1088/1367-2630/14/7/073046)
Miatto, F.M., Giovannini, D., Romero, J., Franke-Arnold, S. , Barnett, S.M. and Padgett, M.J. (2012) Bounds and optimisation of orbital angular momentum bandwidths within parametric down-conversion systems. European Physical Journal D, 66(7), p. 178. (doi: 10.1140/epjd/e2012-20736-x)
Cameron, R. P., Barnett, S. M. and Yao, A. M. (2012) Optical helicity, optical spin and related quantities in electromagnetic theory. New Journal of Physics, 14(5), 053050. (doi: 10.1088/1367-2630/14/5/053050)
Brougham, T. and Barnett, S.M. (2012) Information communicated by entangled photon pairs. Physical Review A: Atomic, Molecular and Optical Physics, 85(3), Art. 032322. (doi: 10.1103/PhysRevA.85.032322)
Leach, J., Warburton, R.E., Ireland, D.G. , Izdebski, F., Barnett, S.M. , Yao, A.M., Buller, G.S. and Padgett, M.J. (2012) Quantum correlations in position, momentum, and intermediate bases for a full optical field of view. Physical Review A: Atomic, Molecular and Optical Physics, 85(1), 013827. (doi: 10.1103/PhysRevA.85.013827)
Barnett, S.M. and Loudon, R. (2012) Optical Thomas-Reiche-Kuhn sum rules. Physical Review Letters, 108(1), 013601. (doi: 10.1103/PhysRevLett.108.013601)
Barnett, S.M. and Phoenix, S.J.D. (2012) Asynchronous quantum key distribution on a relay network. Journal of Modern Optics, 59(15), pp. 1349-1354. (doi: 10.1080/09500340.2012.716460)
Colin, A.J.T., Barnett, S.M. and Jeffers, J. (2012) Measurement-driven dynamics for a coherently-excited atom. Journal of Modern Optics, 59(21), pp. 1803-1815. (doi: 10.1080/09500340.2012.744479)
Romero, J., Giovannini, D., Franke-Arnold, S. , Barnett, S.M. and Padgett, M.J. (2012) Increasing the dimension in high-dimensional two-photon orbital angular momentum entanglement. Physical Review A: Atomic, Molecular and Optical Physics, 86(1), 012334. (doi: 10.1103/PhysRevA.86.012334)
Saunders, D.J., Palsson, M.S., Pryde, G.J., Scott, A.J., Barnett, S.M. and Wiseman, H.M. (2012) The simplest demonstrations of quantum nonlocality. New Journal of Physics, 14(11), Art. 113020. (doi: 10.1088/1367-2630/14/11/113020)
Colin, A.J.T., Barnett, S.M. and Jeffers, J. (2011) Programmed discrimination of qbits with added classical information. European Physical Journal D, 63(3), pp. 463-472. (doi: 10.1140/epjd/e2011-10729-8)
Vaccaro, J.A. and Barnett, S.M. (2011) Information erasure without an energy cost. Proceedings of the Royal Society of London Series A: Mathematical, Physical and Engineering Sciences, 467(2130), pp. 1770-1778. (doi: 10.1098/rspa.2010.0577)
Jack, B., Aursand, P., Franke-Arnold, S. , Ireland, D. , Leach, J., Barnett, S.M. and Padgett, M. (2011) Demonstration of the angular uncertainty principle for single photons. Journal of Optics, 13(6), 064017. (doi: 10.1088/2040-8978/13/6/064017)
Barnett, S.M. (2011) On the six components of optical angular momentum. Journal of Optics, 13(6), 064010. (doi: 10.1088/2040-8978/13/6/064010)
Miatto, F.M., Yao, A.M. and Barnett, S.M. (2011) Full characterization of the quantum spiral bandwidth of entangled biphotons. Physical Review A: Atomic, Molecular and Optical Physics, 83(3), Art. 033816. (doi: 10.1103/PhysRevA.83.033816)
Romero, J., Leach, J., Jack, B., Dennis, M.R., Franke-Arnold, S. , Barnett, S.M. and Padgett, M.J. (2011) Entangled optical vortex links. Physical Review Letters, 106(10), 100407. (doi: 10.1103/PhysRevLett.106.100407) (PMID:21469778)
Štefaňák, M., Barnett, S.M. , Kollár, B., Kiss, T. and Jex, I. (2011) Directional correlations in quantum walks with two particles. New Journal of Physics, 13(3), 033029. (doi: 10.1088/1367-2630/13/3/033029)
Boyd, R.W., Rodenburg, B., Mirhosseini, M. and Barnett, S.M. (2011) Influence of atmospheric turbulence on the propagation of quantum states of light using plane-wave encoding. Optics Express, 19(19), pp. 18310-18317. (doi: 10.1364/OE.19.018310)
Hamilton, C.S., Gábris, A., Jex, I. and Barnett, S.M. (2011) Quantum walk with a four-dimensional coin. New Journal of Physics, 13, Art. 013015. (doi: 10.1088/1367-2630/13/1/013015)
Romero, J., Leach, J., Jack, B., Barnett, S.M. , Padgett, M. and Franke-Arnold, S. (2010) Violation of Leggett inequalities in orbital angular momentum subspaces. New Journal of Physics, 12(12), 123007. (doi: 10.1088/1367-2630/12/12/123007)
Leach, J., Jack, B., Romero, J., Jha, A. K., Yao, A. M., Franke-Arnold, S. , Ireland, D. G. , Boyd, R. W., Barnett, S. M. and Padgett, M. J. (2010) Quantum correlations in optical angle-orbital angular momentum variables. Science, 329(5992), pp. 662-665. (doi: 10.1126/science.1190523) (PMID:20689014)
Mahajan, S., Cole, R.M., Speed, J.D., Pelfrey, S.H., Russell, A.E., Bartlett, P.N., Barnett, S.M. and Baumberg, J.J. (2010) Understanding the surface-enhanced Raman spectroscopy “background”. Journal of Physical Chemistry C, 114(16), pp. 7242-7250. (doi: 10.1021/jp907197b)
Jack, B., Yao, A.M., Leach, J., Romero, J., Franke-Arnold, S. , Ireland, D.G. , Barnett, S.M. and Padgett, M.J. (2010) Entanglement of arbitrary superpositions of modes within two-dimensional orbital angular momentum state spaces. Physical Review A: Atomic, Molecular and Optical Physics, 81(4), 043844. (doi: 10.1103/PhysRevA.81.043844)
Barnett, S.M. and Loudon, R. (2010) The enigma of optical momentum in a medium. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 368(1914), pp. 927-939. (doi: 10.1098/rsta.2009.0207)
Barnett, S.M. (2010) Resolution of the Abraham-Minkowski dilemma. Physical Review Letters, 104(7), (doi: 10.1103/PhysRevLett.104.070401)
Jha, A. K., Leach, J., Jack, B., Franke-Arnold, S. , Barnett, S. M. , Boyd, R. W. and Padgett, M. J. (2010) Angular two-photon interference and angular two-qubit states. Physical Review Letters, 104(1), Art. 010501. (doi: 10.1103/PhysRevLett.104.010501)
Barnett, S.M. (2010) On the recoil and Doppler shifts. Journal of Modern Optics, 57(14-15), pp. 1445-1447. (doi: 10.1080/09500341003605437)
Barnett, S.M. (2010) Quantum state comparison and the universal-NOT operation. Journal of Modern Optics, 57(3), pp. 227-231. (doi: 10.1080/09500340903045728)
Barnett, S.M. (2010) Random qubit-states and how best to measure them. Journal of Modern Optics, 57(3), pp. 232-238. (doi: 10.1080/09500340903082655)
Barnett, S.M. (2010) Rotation of electromagnetic fields and the nature of optical angular momentum. Journal of Modern Optics, 57(14-15), pp. 1339-1343. (doi: 10.1080/09500341003654427)
Boyd, R. W., Leach, J., Jack, B., Romero, J., Jha, A. K., Yao, A. M., Franke-Arnold, S. , Ireland, D. G. , Barnett, S. M. and Padgett, M. J. (2010) New twist on light beams for quantum information science. Optics and Photonics News, 21(12), p. 48. (doi: 10.1364/OPN.21.12.000048)
Brougham, T., Barnett, S.M. and Jex, I. (2010) Interference of composite bosons. Journal of Modern Optics, 57(7), pp. 587-594. (doi: 10.1080/09500340.2010.481731)
Hillery, M., Andersson, E., Barnett, S.M. and Oi, D. (2010) Decision problems with quantum black boxes. Journal of Modern Optics, 57(3), pp. 244-252. (doi: 10.1080/09500340903203129)
Brougham, T., Andersson, E. and Barnett, S.M. (2009) Entropic uncertainties for joint quantum measurements. Physical Review A: Atomic, Molecular and Optical Physics, 80(4), 042106. (doi: 10.1103/PhysRevA.80.042106)
Jack, B., Leach, J., Romero, J., Franke-Arnold, S., Ritsch-Marte, M., Barnett, S.M. and Padgett, M.J. (2009) Holographic ghost imaging and the violation of a Bell inequality. Physical Review Letters, 103(8), 083602. (doi: 10.1103/PhysRevLett.103.083602) (PMID:19792729)
Hinds, E. and Barnett, S.M. (2009) Momentum exchange between light and a single atom: Abraham or Minkowski? Physical Review Letters, 102(5), Art. 050403. (doi: 10.1103/PhysRevLett.102.050403)
Barnett, S.M. and Croke, S. (2009) On the conditions for discrimination between quantum states with minimum error. Journal of Physics A: Mathematical and Theoretical, 42(6), 062001. (doi: 10.1088/1751-8113/42/6/062001)
Barnett, S.M. and Croke, S. (2009) Quantum state discrimination. Advances in Optics and Photonics, 1(2), pp. 238-278. (doi: 10.1364/AOP.1.000238)
Leach, J., Wright, A.J., Götte, J.B. , Girkin, J.M., Allen, L., Franke-Arnold, S., Barnett, S.m. and Padgett, M.J. (2008) 'Aether drag' and moving images. Physical Review Letters, 100(15), p. 153902. (doi: 10.1103/PhysRevLett.100.153902)
Croke, S. , Barnett, S.M. and Stenholm, S. (2008) Linear transformations of quantum states. Annals of Physics, 323(4), pp. 893-906. (doi: 10.1016/j.aop.2007.06.001)
Croke, S. , Andersson, E. and Barnett, S.M. (2008) No-signaling bound on quantum state discrimination. Physical Review A: Atomic, Molecular and Optical Physics, 77(1), 012113. (doi: 10.1103/PhysRevA.77.012113)
Götte, J.B. , O'Holleran, K., Preece, D., Flossmann, F., Franke-Arnold, S. , Barnett, S.M. and Padgett, M.J. (2008) Light beams with fractional orbital angular momentum and their vortex structure. Optics Express, 16(2), pp. 993-1006. (doi: 10.1364/OE.16.000993)
Croke, S. , Mosley, P.J., Barnett, S.M. and Walmsley, I.A. (2007) Maximum confidence measurements and their optical implementation. European Physical Journal D, 41(3), pp. 589-598. (doi: 10.1140/epjd/e2006-00265-1)
Gotte, J.B. , Franke-Arnold, S. , Zambrini, R. and Barnett, S.M. (2007) Quantum formulation of fractional orbital angular momentum. Journal of Modern Optics, 54, pp. 1723-1738. (doi: 10.1080/09500340601156827)
Roychoudhuri, C. et al. (2007) The lateral displacement of a moving image on transmission through a stationary glass window. Proceedings of the SPIE: The International Society for Optical Engineering, 6664, 66640D. (doi: 10.1117/12.735556)
Yao, E., Franke-Arnold, S. , Courtial, J., Padgett, M. J. and Barnett, S. M. (2006) Observation of quantum entanglement using spatial light modulators. Optics Express, 14(26), pp. 13089-13094. (doi: 10.1364/OE.14.013089)
Loudon, R. and Barnett, S. M. (2006) Theory of the radiation pressure on dielectric slabs, prisms and single surfaces. Optics Express, 14(24), pp. 11855-11869. (doi: 10.1364/OE.14.011855)
Padgett, M. , Whyte, G., Girkin, J., Wright, A., Allen, L., Ohberg, P. and Barnett, S. M. (2006) Polarization and image rotation induced by a rotating dielectric rod: an optical angular momentum interpretation. Optics Letters, 31, pp. 2205-2207. (doi: 10.1364/OL.31.002205)
Brougham, T., Andersson, E. and Barnett, S.M. (2006) Cloning and joint measurements of incompatible components of spin. Physical Review A: Atomic, Molecular and Optical Physics, 73(6), 062319. (doi: 10.1103/PhysRevA.73.062319)
Götte, J. B. , Radmore, P. M., Zambrini, R. and Barnett, S. (2006) Angular minimum uncertainty states with large uncertainties. Journal of Physics B: Atomic, Molecular and Optical Physics, 39(12), pp. 2791-2801. (doi: 10.1088/0953-4075/39/12/013)
Zambrini, R. and Barnett, S. M. (2006) Quasi-intrinsic angular momentum and the measurement of its spectrum. Physical Review Letters, 96(11), p. 113901. (doi: 10.1103/PhysRevLett.96.113901)
Götte, J.B. , Franke-Arnold, S. and Barnett, S. M. (2006) Angular EPR paradox. Journal of Modern Optics, 53(5-6), pp. 627-645. (doi: 10.1080/009500340500227075)
Croke, S. , Andersson, E., Barnett, S.M. , Gilson, C.R. and Jeffers, J. (2006) Maximum confidence quantum measurements. Physical Review Letters, 96(7), 070401. (doi: 10.1103/PhysRevLett.96.070401)
Götte, J. B. , Zambrini, R., Franke-Arnold, S. and Barnett, S. M. (2006) Erratum. Large-uncertainty intelligent states for angular momentum and angle. Journal of Physics B: Atomic, Molecular and Optical Physics, 39(9), pp. 2315-1251. (doi: 10.1088/0953-4075/39/9/C01)
Mosley, P., Croke, S. , Walmsley, I. and Barnett, S.M. (2006) Experimental realization of maximum confidence quantum state discrimination for the extraction of quantum information. Physical Review Letters, 97(19), p. 193601. (doi: 10.1103/PhysRevLett.97.193601)
Götte, J. B. , Zambrini, R., Franke-Arnold, S. and Barnett, S. M. (2005) Large-uncertainty intelligent states for angular momentum and angle. Journal of Optics B: Quantum and Semiclassical Optics, 7(12), S563-S571. (doi: 10.1088/1464-4266/7/12/019)
Franke-Arnold, S., Barnett, S. M. , Yao, E., Leach, J., Courtial, J. and Padgett, M. (2004) Uncertainty principle for angular position and angular momentum. New Journal of Physics, 6(103), (doi: 10.1088/1367-2630/6/1/103)
Leach, J., Courtial, J. , Skeldon, K., Barnett, S. M. , Franke-Arnold, S. and Padgett, M. J. (2004) Interferometric methods to measure orbital and spin, or the total angular momentum of a single photon. Physical Review Letters, 92(1), 013601. (doi: 10.1103/PhysRevLett.92.013601)
Leach, J., Padgett, M. J. , Barnett, S. M. , Franke-Arnold, S. and Courtial, J. (2002) Measuring the orbital angular momentum of a single photon. Physical Review Letters, 88(25), p. 257901. (doi: 10.1103/PhysRevLett.88.257901)
Franke-Arnold, S. , Barnett, S. M. , Padgett, M. and Allen, L. (2002) Two-photon entanglement of orbital angular momentum states. Physical Review A: Atomic, Molecular and Optical Physics, 65(3), art 033823. (doi: 10.1103/PhysRevA.65.033823)
Franke-Arnold, S. , Huyet, G. and Barnett, S. M. (2000) Hardy state correlations for two trapped ions. Journal of Modern Optics, 47(2-3), pp. 145-153. (doi: 10.1080/095003400148114)
Franke, S. and Barnett, S. M. (1996) Angular momentum in spontaneous emission. Journal of Physics B: Atomic, Molecular and Optical Physics, 29(10), pp. 2141-2150. (doi: 10.1088/0953-4075/29/10/022)
Conference or Workshop Item
Barnett, S. M. (2017) Optical Forces: Some Fundamentals and Some Surprises. 2017 11th International Congress on Engineered Materials Platforms for Novel Wave Phenomena (Metamaterials), Marseille, France, 27 Aug - 2 Sept 2017. pp. 328-330. ISBN 9781538637685 (doi: 10.1109/MetaMaterials.2017.8107801)
Conference Proceedings
McWilliam, A. , Cisowski, C. M., Ye, Z., Speirits, F. C. , Goette, J. B. , Barnett, S. and Franke-Arnold, S. (2024) A Topological Approach to Characterising Optical Skyrmions. In: Complex Light and Optical Forces XVIII, Photonics West, San Francisco, California, United States, 29 January – 1 February 2024, 1290105 -1. ISBN 9781510670624 (doi: 10.1117/12.3002420)
Barnett, S. M. , Cisowski, C. M., McWilliam, A., Speirits, F. C. , Ye, Z., Götte, J. B. and Franke-Arnold, S. (2023) Optical Skyrmions. In: Active Photonic Platforms (APP) 2023, San Diego, CA, USA, 20-25 Aug 2023, 126470A. ISBN 9781510665088 (doi: 10.1117/12.2676688)
Crimin, F. , MacKinnon, N., Götte, J. B. and Barnett, S. M. (2020) Continuous Symmetries and Conservation Laws in Chiral Media. In: SPIE OPTO 2020, San Francisco, CA, USA, 1-6 Feb 2020, (doi: 10.1117/12.2550815)
Sonnleitner, M., Jeffers, J. and Barnett, S. M. (2016) Local Retrodiction Models for Photon-Noise-Limited Images. In: Optics, Photonics and Digital Technologies for Imaging Applications IV, Brussels, Belgium, 05-06 Apr 2016, 98960V. (doi: 10.1117/12.2224444)
Giovannini, D., Romero, J., Potocek, V., Ferenczi, G., Speirits, F. , Barnett, S. , Faccio, D. and Padgett, M. (2015) Reducing the Free-Space Group Velocity of Single Photons by Transverse Structuring. In: CLEO: QELS - Fundamental Science 2015, San Jose, California, 10-15 May 2015, ISBN 9781557529688 (doi: 10.1364/CLEO_QELS.2015.FTu4A.4)
Romero, J., Giovannini, D., Franke-Arnold, S. , Barnett, S. M. and Padgett, M. J. (2012) Increasing the Orbital Angular Momentum Bandwidth of Entangled Photons. In: Electro-Optical Remote Sensing, Photonic Technologies, and Applications VI, Edinburgh, UK, 24-27 Sep 2012, 85421S. ISBN 9780819492838 (doi: 10.1117/12.979888)
Izdebski, F., Leach, J., Warburton, R. E., Ireland, D. G. , Barnett, S. M. , Yao, A. M., Buller, G. S. and Padgett, M. J. (2012) Quantum Correlations in Position, Momentum and Intermediate Bases, Measured Using Fiber Arrays. In: SPIE OPTO 2012: Complex Light and Optical Forces VI, San Francisco, CA, USA, 25-26 Jan 2012, 82740E. ISBN 9780819489173 (doi: 10.1117/12.912055)
Leach, J., Jack, B., Romero, J., Ireland, D. , Franke-Arnold, S. , Barnett, S. and Padgett, M. (2010) Quantum Imaging and Orbital Angular Momentum. In: SPIE OPTO 2010: Complex Light and Optical Forces IV, San Francisco, CA, USA, 27-28 Jan 2010, 76130L. ISBN 9780819480095 (doi: 10.1117/12.845250)
Padgett, M. , Leach, J., Götte, J. , Franke-Arnold, S. , Allen, L., Wright, A., Girkin, J. and Barnett, S. (2007) Moving Images - Are they Laterally Displaced by Transmission Through a Stationary Glass Window? In: Conference on Coherence and Quantum Optics, CQO 2007, Rochester, NY, 13 June 2007, ISBN 978155752849-0
Götte, J. B. , Franke-Arnold, S. and Barnett, S. M. (2004) Angular EPR paradox. In: Seventh International Conference on Quantum Communication, Measurement and Computing, Glasgow, UK, 25-29 Jul 2004, pp. 273-276. ISBN 9780735402164 (doi: 10.1063/1.1834433)
Gibson, G. , Courtial, J. , Vasnetsov, M., Barnett, S. , Franke-Arnold, S. and Padgett, M. (2004) Increasing the Data Density of Free-space Optical Communications Using Orbital Angular Momentum. In: Free-Space Laser Communications IV, Denver, CO, USA, 02-06 Aug 2004, pp. 367-373. (doi: 10.1117/12.557176)
Courtial, J. , Padgett, M. , Leach, J., Yao, E., Barnett, S. and Franke-Arnold, S. (2003) Measuring the topological charge of optical vortices: from the orbital angular momentum of individual photons to the angular uncertainty principle. In: 1st International Conference on Advanced Optoelectronics and Lasers/1st Workshop on Precision Oscillations in Electronics and Optics, Alushta, Ukraine, 16-20 Sep 2003, ISBN 0780379489 (doi: 10.1109/CAOL.2003.1250503)
Leach, J., Franke-Arnold, S. , Courtial, J. , Yao, E., Barnett, S. and Padgett, M. (2003) Measurement of the Angle-angular Momentum Uncertainty of a Light Beam. In: 5th International Workshop on Laser and Fiber-Optical Networks Modeling, Alushta, Ukraine, 19-20 Sep 2003, p. 145. ISBN 9780780377097 (doi: 10.1109/LFNM.2003.1246106)
Research datasets
2023
McWilliam, A., Cisowski, C. M., YE, Z., Speirits, F. , Goette, J. , Barnett, S. and Franke-Arnold, S. (2023) Topological approach of characterizing optical Skyrmions and Skyrmion lattices. [Data Collection]
2017
Phillips, D., Sun, M.-J., Taylor, J. , Edgar, M., Barnett, S. , Gibson, G. and Padgett, M. (2017) Adaptive foveated single-pixel imaging with dynamic super-sampling. [Data Collection]
2015
Radwell, N., Clark, T. W., Piccirillo, B., Barnett, S. and Franke-Arnold, S. (2015) Spatially dependent electromagnetically induced transparency. [Data Collection]
Giovannini, D., Romero, J., Potoček, V., Ferenczi, G., Speirits, F., Barnett, S. , Faccio, D. and Padgett, M. (2015) Spatially structured photons that travel in free space slower than the speed of light. [Data Collection]
