Toward practical quantum computers: Technique extends duration of fragile quantum states
Friday, January 30, 2015 - 07:20
in Physics & Chemistry
Quantum computers are experimental devices that promise exponential speedups on some computational problems. Where a bit in a classical computer can represent either a 0 or a 1, a quantum bit, or qubit, can represent 0 and 1 simultaneously, letting quantum computers explore multiple problem solutions in parallel. But such "superpositions" of quantum states are, in practice, difficult to maintain.