Summary
International Symposium on Nonlinear Theory and Its Applications
2022
Session Number:C4L-B
Session:
Number:C4L-B-01
Phonon Scattering by Discrete Breather in Nonlinear Lattice with Potential Symmetry
Kazuyuki Yoshimura , Yudai Hirata,
pp.515-518
Publication Date:12/12/2022
Online ISSN:2188-5079
Summary:
We study the scattering of phonons by standing discrete breather in two types of one-dimensional nonlinear lattices which have long-range quartic nonlinear and nearest neighbor harmonic interactions. Each lattice has a particular hidden symmetry in its potential function. It is shown that both of the lattices exhibit anomalous properties in the phonon scattering process, compared with the ordinary Fermi-Pasta-Ulam-Tsingou lattice.