: a quantum of vibrational energy (as in a crystal)
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Since high-frequency acoustic oscillations can also be used to manipulate quantum states, phonon lasers could be deployed to study them in greater detail and open avenues for future quantum sensing and quantum computing.—Ameya Paleja, Interesting Engineering, 30 Mar. 2026 Their conductivity is limited by the strong interactions between free-moving electrons and atomic vibrations called phonons.—Abhimanyu Ghoshal, New Atlas, 27 Jan. 2026 Intermixing at the interface between the diamond and silicon nitride led to the formation of silicon carbide, which acted as a kind of bridge for the phonons, allowing more efficient heat transfer.—IEEE Spectrum, 20 Oct. 2025 Then the electron grid relaxes, and its ripples pair electrons the way phonons do.—Charlie Wood, WIRED, 12 Jan. 2025 See All Example Sentences for phonon
Word History
Etymology
borrowed from Russian fonon, from Greek phōnḗ "sound made by something living, voice" + Russian -on-on entry 2 — more at phono-