Formation of bright solitons from wave packets with repulsive nonlinearity

Formation of bright solitons from wave packets with repulsive nonlinearity

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 thin film strips. When the wave packets are narrow and have low power, they undergo self-broadening du...

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Bibliographic Details
Published in:New journal of physics 2014-05, Vol.16 (5), p.53048-9
Main Authors: Wang, Zihui, Cherkasskii, Mikhail, Kalinikos, Boris A, Carr, Lincoln D, Wu, Mingzhong
Format: Article
Language:eng
Subjects:
Computer simulation
Formations
Garnets
Inertia
Lattice theory
Mathematical models
nonlinear wave
Nonlinearity
Physics
Schrodinger equation
Schroedinger equation
Solitary waves
soliton
Solitons
spin wave
Thin films
Wave packets
Wave propagation
Yttrium
Yttrium-iron garnet
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Summary: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 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.
ISSN:1367-2630
1367-2630