Adding nanofridges to quantum computers could make them run faster

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Some of the components in quantum computers must be reset between operations, slowing down calculations, but tiny refrigerators could speed things up

process information using quantum bits, or qubits, which must be reset to a special state between running programs. Teruaki Yoshioka at the Tokyo University of Science says slow reset times can become a real computational bottleneck, especially if they are slower than the speed of operations of a quantum computer.

He and his colleagues have devised a way to make this resetting process shorter by using a nano-sized quantum circuit refrigerator …

 

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