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ScienceQuiet 41h · day 7

Stanford team observes first real-time quantum jump in sound

Researchers directly detect phonons making discrete energy transitions in a mechanical resonator, opening pathways for quantum computing and sensing.

newest coverage 1d agosummary written 4d ago13 pieces1 likes & upvotes NewswiresGoogle NewsHacker News

What to know

  • Stanford researchers directly observed quantum jumps of sound—discrete energy transitions of phonons in a mechanical resonator—for the first time in real time.
  • The breakthrough required integrating a tiny mechanical resonator with a superconducting qubit that could monitor vibrations without disturbing the quantum system.
  • The discovery demonstrates that vibrating objects can exhibit quantum behavior, clearing a path toward quantum computing and sensing applications using sound.

Amir Safavi-Naeini Stanford physicist, lead researcherTakuma Makihara Co-first author, Stanford doctoral graduateErik Szakiel Co-first authorStanford School of Humanities and Sciences Research institution

Stanford team observes first real-time quantum jump in sound
thequantuminsider.com

How it unfolded 1 development · click the chart to see its coverage articlesposts

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Sep 18Sep 19Sep 20Sep 21Sep 22yesterdaynow · 2:55 AM ET
  1. 1

    Researchers use superconducting qubit to detect phonon transitions without disturbing quantum state

    Co-first authors Takuma Makihara and Erik Szakiel developed a method integrating a microscopic mechanical resonator with a superconducting qubit that could monitor the resonator's vibrations for two milliseconds without degrading either system. The qubit repeatedly checked whether the phonon remained at energy level 1 or had jumped to 0.

    “We had to continually develop new processes to make this extremely long-lived, vibrating object and then integrate it with the qubit, without ruining either subsystem.”
    — Takuma Makihara
    1. 6 outlets Stanford Physicists Observe Quantum Jumps in Sound in Real Time

      first by ForkLog, 6d ago · also Interesting Engineering, The Quantum Insider, Stanford School of Humanities and Sciences, ScienceDaily, The Brighter Side of News

      6 more headlines
  2. background

    Stanford team reports first direct observation of quantum jumps in sound — Researchers led by physicist Amir Safavi-Naeini documented the first real-time observation of quantum jumps of sound in a mechanical resonator, capturing individual phonons transitioning between energy states. The findings were published in Science.