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On symmetric breather collisions in lattices with saturable nonlinearity

Author

Listed:
  • A. Maluckov
  • Lj. Hadžievski
  • M. Stepić

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

Suggested Citation

  • A. Maluckov & Lj. Hadžievski & M. Stepić, 2006. "On symmetric breather collisions in lattices with saturable nonlinearity," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 53(3), pages 333-341, October.
    • Handle: RePEc:spr:eurphb:v:53:y:2006:i:3:p:333-341
    DOI: 10.1140/epjb/e2006-00379-2
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