Self-generation of chaotic dissipative multisoliton complexes supported by competing nonlinear spin-wave interactions.

Grishin, Sergey V; Dmitriev, Boris S; Moskalenko, Olga I; Skorokhodov, Valentin N; Sharaevskii, Yurii P · Phys Rev E · 2018

basic_science · Level V

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Abstract

A self-generation of chaotic dissipative spin-wave multisoliton complexes has been observed experimentally. Localized in time, these patterns are formed in a passively Q-switched and mode-locked magnetic film feedback ring due to the competing three- and four-wave nonlinear spin-wave interactions. Such competition induces a modulation instability that leads to the formation of incoherent one-color four-wave bound solitons embedded in chaotic three-wave solitonlike pulses. The development of a symmetry-breaking instability causes a transition from incoherent one-color four-wave bound solitons to chaotic multicolor ones.