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This study marks a pivotal milestone by directly observing quantum jumps in phonons, the fundamental units of sound, rather than just photons or ions. By successfully integrating these mechanical resonators with qubit detectors without disrupting their delicate states, researchers have opened new pathways for developing quantum technologies that utilize acoustic waves. This advancement expands the toolkit for quantum computing and sensing, demonstrating that quantum phenomena can be harnessed in mechanical systems alongside traditional electronic ones.
Stanford captures a quantum jump in sound for the first time
Stanford physicists directly observed a quantum jump in sound, confirming how tiny units called “phonons” suddenly change energy levels.
Stanford physicists have, for the first time, directly observed a quantum jump in sound, documenting the instantaneous shift of a tiny unit of vibration, a phonon, from one energy level to another. Led by Professor Amir Safavi-Naeini of the Stanford School of Humanities and Sciences, the team pinpointed this fleeting moment within two milliseconds by taking hundreds of measurements of a specially fabricated mechanical resonator. “What this study shows will allow us to move forward with developing new quantum technologies with sound,” said Safavi-Naeini, completing an arc of scientific exploration begun over a century ago and opening possibilities for advances in quantum computing and sensing. The research,…
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