Decay of DNLS breathers through inelastic multiphonon scattering

Details Decay of DNLS breathers through inelastic multiphonon scattering Decay of DNLS breathers through inelastic multiphonon scattering

2000-12-28

arxiv.org/abs/nlin/0012064v1

Phys. Rev. E 63, 037601 (2001)

Nonlinear Sciences

Pattern Formation and Solitons

4 pages, 1 figure, to be published in Physical Review E

Scientific paper

10.1103/PhysRevE.63.037601

We consider the long-time evolution of weakly perturbed discrete nonlinear Schroedinger breathers. While breather growth can occur through nonlinear interaction with one single initial linear mode, breather decay is found to require excitation of at least two independent modes. All growth and decay processes of lowest order are found to disappear for breathers larger than a threshold value.

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