Localized waves and mixed interaction solutions with dynamical analysis to the Gross-Pitaevskii equation in the Bose-Einstein condensate

We report a kind of breather, rogue wave, and mixed interaction structures on a variational background height in the Gross-Pitaevskii equation in the Bose-Einstein condensate by the generalized Darboux transformation method, and the effects of related parameters on rogue wave structures are discussed. Numerical simulation can discuss the dynamics and stability of these solutions. We numerically confirm that these are correct and can be reproduced from a deterministic initial profile. Results show that rogue waves and mixed interaction solutions can evolve with a small amplitude perturbation under the initial profile conditions, but breathers cannot. Therefore, these can be used to anticipate the feasibility of their experimental observation.

Automated summary

In this study, a breather, rogue wave, and mixed interaction structures are identified in the Gross-Pitaevskii equation in Bose-Einstein condensate using the generalized Darboux transformation method, with discussions on the effects of related parameters on rogue wave structures. Numerical simulations confirm the dynamics and stability of these structures, showing that they can evolve with small amplitude perturbations under certain conditions, while breathers cannot. These findings suggest potential feasibility for experimental observation of these structures.