Nonlinear energy transmission in the gap

Details Nonlinear energy transmission in the gap Nonlinear energy transmission in the gap

2001-03-09

arxiv.org/abs/nlin/0103009v1

Nonlinear Sciences

Pattern Formation and Solitons

Latex file, 6 figures, 9 pages, to appear in Physics Letters A

Scientific paper

10.1016/S0375-9601(01)00192-X

Numerical simulations of the scattering of a linear plane wave incoming onto a nonlinear medium (sine-Gordon) reveals that: i) nonlinearity allows energy transmission in the forbidden band, ii) this nonlinear transmission occurs beyond an energy threshold of the incoming wave, iii) the process begins (at the threshold) with large amplitude breathers, and then energy is generically transmitted both by kink-antikink pairs and breathers.

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