paper

Formation of Bright Solitons from Wave Packets with Repulsive Nonlinearity

arXiv:1505.01882 · doi:10.1088/1367-2630/16/5/053048

Abstract

Formation of bright envelope solitons from wave packets with a repulsive nonlinearity was observed for the first time. The experiments used surface spin-wave packets in magnetic yttrium iron garnet (YIG) thin film strips. When the wave packets are narrow and have low power, they undergo self-broadening during the propagation. When the wave packets are relatively wide or their power is relatively high, they can experience self-narrowing or even evolve into bright solitons. The experimental results were reproduced by numerical simulations based on a modified nonlinear Schrödinger equation model.

arXiv comment10 pages, 4 figures

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