Summary
International Symposium on Nonlinear Theory and Its Applications
2016
Session Number:C1L-D
Session:
Number:C1L-D-3
Discrete Breathers: Affecting the Density Shapes of Heat Transport
Daxing Xiong, Jun Zhang,
pp.-
Publication Date:2016/11/27
Online ISSN:2188-5079
Summary:
Discrete breathers (DBs), also known as intrinsic localized modes, are spatially localized nonlinear vibrational modes in anharmonic lattices, which are usually expected to affect the energy transport process. In the heat transport field of theoretical research, to predict the transport densities is currently a very fascinating topic. Inspired by these progress, we here investigate how DBs may affect the heat transport densities shapes. Through studying two peculiar one-dimensional nonlinear lattice models heat spreading processes, i.e., the Fermi-Pasta-Ulam-beta chains with and without next-nearest-neighbor couplings, we will show some preliminary numerical evidences on how different types of DBs change the heat spreading densities.