Phonon Bloch Oscillations
Classical Physics
2023-05-23 v1 Other Condensed Matter
Abstract
The classical motion of a one-dimensional chain of atoms coupled through a specific force function that depends on position shows features very similar to the Wannier-Stark problem of a quantum particle under the combined effects of a periodic lattice potential and a constant electric field. Both problems exhibit localized modes and a ladder of equally-spaced eigenfrequencies, leading to temporal dynamics characterized by periodic oscillations.
Cite
@article{arxiv.2305.11880,
title = {Phonon Bloch Oscillations},
author = {R. Merlin},
journal= {arXiv preprint arXiv:2305.11880},
year = {2023}
}