Quantum ghosts are helpful
Monday, April 27, 2009 - 09:42
in Physics & Chemistry
The idea that far distant particles can somehow 'talk' to each other worried Einstein so much that he called it 'spooky action at a distance.' Having confirmed its existence, scientists today are learning how to use this 'spooky action' as a helpful tool. Now a team of physicists at the University of Bristol and Imperial College London have harnessed this phenomenon to shed light on another unusual and previously difficult aspect of quantum physics - that of distinguishing between two similar quantum devices...