T-duality via bundle gerbes

Raymond Vozzo (University of Adelaide)

Monday 3rd October, 2011 16:00-17:00 204


In physics T-duality is a phenomenon which relates certain types of string theories to one another. From a topological point of view, one can view string theory as a duality between line bundles carrying a degree three cohomology class (the H-flux). Bundle gerbes provide a geometric realisation of the degree three cohomology of a manifold. In this talk we will use bundle gerbes to give a geometric realisation of the H-flux and explain how to construct the T-dual of a line bundle together with its T-dual bundle gerbe.

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