Caught on camera: quantum mechanics in action
Issued: Wed, 08 Aug 2012 11:54:00 BST
"In quantum mechanics, entanglement is one of the bizarre behaviours exhibited by particles where the rules of classical physics are broken and seemingly impossible events are a reality.
Described by Einstein as ‘spooky action at a distance’, entanglement is the phenomenon whereby two particles act as one system even when separated by immense distances.
The entangled particles are in a superposition where their individual state isn’t known. However, as soon as one of them is measured or observed the other will take on a correlated state instantaneously, seemingly violating the speed of light."