Researchers have built a quantum computer in a diamond, the first of its kind to include protection against harmful noise called “decoherence.”
“It’s a little like time travel,” University of Southern California professor Daniel Lidar, because switching the direction of rotation time-reverses the inconsistencies in motion as the ‘qubits’ (quantum bits made of subatomic particles) move back to their original position.
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Photo credit: Delft University of Technology/UC Santa Barbara