Researchers observe first real-time quantum jump in sound

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The sound never dies smoothly. Contrary to what our ears perceive, on the scale of the infinitely small, it does not turn off: it disappears, at once. And for the first time, scientists have seen it do.

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Scientists at Stanford have observed quantum jumps of sound in a resonator for the first time. The result will help develop quantum computing and sensors

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Stanford University researchers have recorded quantum leaps in sound (phonons) in real time for the first time, opening new avenues for quantum computers.

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A vibrating resonator does not lose its energy in the quantum range continuously, but in individual portions. Researchers have now tracked for the first time in real time, such as a phonon, a quant mechanical vibration, from the first excited state to the basic state. This was made possible by a particularly long-lasting nanomechanical resonator and repeated measurements with a superconducting qubit. Stanford (U.S.A.). An impacted tuning fork be…