Discrete soliton collisions in a waveguide array with saturable nonlinearity

J. Cuevas, J. C. Eilbeck

Research output: Contribution to journalArticle

Abstract

We study the symmetric collisions of two mobile breathers/solitons in a model for coupled wave guides with a saturable nonlinearity. The saturability allows the existence of mobile breathers with high power. Three main regimes are observed: breather fusion, breather reflection and breather creation. The last regime seems to be exclusive of systems with a saturable nonlinearity, and has been previously observed in continuous models. In some cases a "symmetry breaking" can be observed, which we show to be an numerical artifact. © 2006 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)15-20
Number of pages6
JournalPhysics Letters A
Volume358
Issue number1
DOIs
Publication statusPublished - 2 Oct 2006

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solitary waves
nonlinearity
waveguides
collisions
artifacts
broken symmetry
fusion

Keywords

  • Saturable nonlinearity
  • Solitons
  • Waveguide arrays

Cite this

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Discrete soliton collisions in a waveguide array with saturable nonlinearity. / Cuevas, J.; Eilbeck, J. C.

In: Physics Letters A, Vol. 358, No. 1, 02.10.2006, p. 15-20.

Research output: Contribution to journalArticle

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