出典:Wiktionary
出典:『Wiktionary』 (2025/11/09 00:37 UTC 版)
From phono- + -on. From Ancient Greek φωνή (phōnḗ, “sound”).
出典:Wikipedia
出典:『Wikipedia』 (2011/06/17 21:28 UTC 版)
In physics, a phonon is a collective excitation in a periodic, elastic arrangement of atoms or molecules in condensed matter, such as solids and some liquids. Often referred to as a quasiparticle, it represents an excited state in the quantum mechanical quantization of the modes of vibrations of elastic structures of interacting particles.