On Moving Discrete Modes in Nonlinear Lattices

Aleksandra Maluckov, Milutin Stepić, Goran Gligorić, Ljupčo Hadžievski, Boris Malomed

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper we summarize the results of our investigation of the moving localized structures in lattice like systems. Dynamics of discrete localized modes in cubic, cubic-quintic, saturable photorefractive lattice and in the Bose-Einstein condensate modelled by the nonpolynomial Schrödinger equation are considered in the framework of the Peierls-Nabarro barrier. Two approaches are numerically tested: free-energy approach and mapping analysis. We show that only the last one is appropriate.

Original languageEnglish
Title of host publication7th International Summer School/Conference "Let's Face Chaos Through Nonlinear Dynamics" - Dedicated to the 65th Birthday of Professor Giulio Casati
EditorsValery G. Romanovski, Marko Robnik
PublisherAmerican Institute of Physics Inc.
Pages142-148
Number of pages7
ISBN (Electronic)9780735406070
DOIs
StatePublished - 2008
Event7th International Summer School/Conference "Let's Face Chaos Through Nonlinear Dynamics" - Maribor, Slovenia
Duration: 29 Jun 200813 Jul 2008

Publication series

NameAIP Conference Proceedings
Volume1076
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference7th International Summer School/Conference "Let's Face Chaos Through Nonlinear Dynamics"
Country/TerritorySlovenia
CityMaribor
Period29/06/0813/07/08

Keywords

  • free energy
  • mapping analysis
  • the Peierls-Nabarro barrier

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