On symmetric breather collisions in lattices with saturable nonlinearity

A. Maluckov (), Lj. Hadžievski and M. Stepić

The European Physical Journal B: Condensed Matter and Complex Systems, 2006, vol. 53, issue 3, 333-341

Abstract: Symmetric collisions of two discrete breathers in the lattice with saturable nonlinearity are investigated. The strong correlation of the collision properties and the parameters of colliding breathers (power, velocity, and phase difference), lattice parameters and position of the collision point is found. This is related to the internal structure of the colliding breathers and energy exchange with the phonon background. The type of collision changes from elastic to the inelastic (the breathers merging, multi-bounce interactions, breather creation etc.) with the increasing of the colliding breather power. Collision of high power breathers always results in the breather fusion. The elastic and inelastic collisions are related to the periodic and quasi-periodic colliding breathers, respectively. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Keywords: 42.65.Tg Optical solitons; nonlinear guided waves, 63.20.Pw Localized modes, (search for similar items in EconPapers)
Date: 2006
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DOI: 10.1140/epjb/e2006-00379-2

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