Dynamics of Rogue Wave Excitation Pattern on Stripe Phase Backgrounds in a Two-component Bose-Einstein Condensate

Abstract

We study rogue wave excitation pattern in a two-component Bose-Einstein condensate with pair-transition effects. The results indicate that rogue wave excitation can exist on a stripe phase background for which there are cosine and sine wave background in the two components respectively. The rogue wave peak can be much lower than the ones of scalar matter wave rogue waves, and varies with the wave period changing. Both rogue wave pattern and rogue wave number on temporal-spatial plane are much more abundant than the ones reported before. Furthermore, we prove that the rogue wave number can be $n(n+1)/2+m(m+1)/2$ (where $m,n$ are arbitrary non-negative integers), in contrast to $n(n+1)/2$ for scalar nonlinear Schrödinger equation described systems. These results would enrich our knowledge on nonlinear excitations in multi-component Bose-Einstein condensate with transition coupling effects.

arXiv comment8 pages, 8 figures

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• Breathers and solitons on two different backgrounds in a generalized coupled Hirota system with four wave mixing
• Linear interference and systematic soliton shape modulation by engineering plane wave background and soliton parameters