Physicists find way to control individual bits in quantum computers

Physicists at the National Institute of Standards and Technology (NIST) have overcome a hurdle in quantum computer development, having devised a viable way to manipulate a single 'bit' in a quantum processor without disturbing the information stored in its neighbours. The approach, which makes novel use of polarised light to create 'effective' magnetic fields, could bring the long-sought computers a step closer to reality...

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