A phonon is a quasiparticle, collective excitation in a periodic, elastic arrangement of atoms or molecules in condensed matter, specifically in solids and some liquids.

Phonon, in condensed-matter physics, a unit of vibrational energy that arises from oscillating atoms within a crystal. Any solid crystal, such as ordinary table salt (sodium chloride), consists of atoms …

Jun 10, 2025 · There are two main types of phonons: acoustic phonons and optical phonons. Each type affects how energy moves through a solid material in different ways. Acoustic phonons are low …

Jan 21, 2026 · The meaning of PHONON is a quantum of vibrational energy (as in a crystal).

Apr 7, 2024 · In the figures illustrating each phonon mode, the arrows signify the direction and “size” of the atomic displacements, which are, in fact, oscillations about the equilibrium positions of the atoms.

1 Introduction A phonon is a collective excitation in condensed matter, which is a quantization of the vibration mode in elastic structures. Although phonons are not as popular as photons or electrons, …

Sep 22, 2025 · In this Perspective we introduce a framework for classifying phonons with angular momentum, and provide illustrations of the different types using examples from the recent literature.

A phonon is the elementary excitation in the quantum mechanical treatment of vibrations in a crystal lattice [1] or the quantum unit of a crystal lattice vibration.

The evidence on the behavior of vibrational energy in periodic solids is that the collective vibrational modes can accept energy only in discrete amounts, and these quanta of energy have been labeled …

A phonon is a quantum of vibrational energy that arises from the collective oscillation of atoms within a crystal lattice. In simple terms, just as a photon is a discrete packet of light energy, a phonon is a …