Instability of Double-Periodic Waves in the Nonlinear Schrödinger Equation
نویسندگان
چکیده
It is shown how to compute the instability rates for double-periodic solutions cubic NLS (nonlinear Schrödinger) equation by using Lax linear equations. The wave function modulus of periodic both in space and time coordinates; such generalize standing waves which have time-independent space-periodic modulus. Similar other equation, are spectrally unstable this related bands spectrum outside imaginary axis. A simple numerical method used compare with those waves.
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ژورنال
عنوان ژورنال: Frontiers in Physics
سال: 2021
ISSN: ['2296-424X']
DOI: https://doi.org/10.3389/fphy.2021.599146