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Rogue waves on the background of periodic standing waves in the derivative nonlinear Schrödinger equation
Jinbing Chen1, Dmitry E Pelinovsky2
1School of Mathematics, Southeast University, Nanjing, Jiangsu 210096, People's Republic of China.
Abstract:
The derivative nonlinear Schrödinger (DNLS) equation is the canonical model for the dynamics of nonlinear waves in plasma physics and optics. We study exact solutions describing rogue waves on the background of periodic standing waves in the DNLS equation. We show that the space-time localization of a rogue wave is only possible if the periodic standing wave is modulationally unstable. If the periodic standing wave is modulationally stable, the rogue wave solutions degenerate into algebraic solitons propagating along the background and interacting with the periodic standing waves. Maximal amplitudes of rogue waves are found analytically and confirmed numerically.
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