Summary
the 2014 International Symposium on Nonlinear Theory and its Applications
2014
Session Number:C1L-B
Session:
Number:C1L-B1
Constructing a lattice model supporting highly mobile discrete breathers
Yusuke Doi, Kazuyuki Yoshimura,
pp.401-403
Publication Date:2014/9/14
Online ISSN:2188-5079
Summary:
A lattice model that supports highly mobile discrete breathers (DBs) is investigated. In various nonlinear lattices, DBs have mobility. However mobile DBs with a constant velocity are not always realized. We propose a symmetric lattice with respect to shifting a displacement pattern to one lattice spacing. It is shown that DBs in the proposed symmetric lattices travels much better than those in Fermi-Past-Ulam (FPU) type lattice from an initial condition with a standing DB with arbitrary perturbations.