aiqbench takeQuantum Computing

This research demonstrates a significant breakthrough in extending silicon-vacancy spin coherence time by using phonons to shield qubits from environmental noise. By leveraging mechanical vibrations instead of microwave pulses, this all-mechanical approach enables more compact and scalable quantum networks directly on chips. The method effectively solves the dual challenge of maintaining strong spin-phonon interaction while preserving long coherence times for stable quantum information storage.

Source coveringQuantum Zeitgeist

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Sound waves—SEAS—shield qubits, extending quantum memory

Quantum ZeitgeistSeptember 13, 20263 min read

Harvard’s SEAS researchers use mechanical vibrations, or extremely small sound waves, to protect qubits—extending quantum memory.

Eliza Cornell, a recent Ph.D. graduate from the Harvard John A. Paulson School of Engineering and Applied Sciences, and Zhujing Xu led experiments demonstrating a new method of extending quantum memory using mechanical vibrations. The researchers successfully protected qubits by “dressing” them with continuous sound waves, or phonons, achieving a roughly threefold increase in silicon-vacancy spin coherence time. “We are solving…

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