Discrete soliton collisions in a waveguide array with saturable nonlinearity

J Cuevas; JC Eilbeck

doi:10.1016/j.physleta.2006.04.095

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arXiv · nlin/0501050

Discrete soliton collisions in a waveguide array with saturable nonlinearity

J Cuevas·JC Eilbeck

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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 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.

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J Cuevas, JC Eilbeck. 2005-06-14. Discrete soliton collisions in a waveguide array with saturable nonlinearity. https://doi.org/10.1016/j.physleta.2006.04.095

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