https://doi.org/10.1140/epjb/e2015-60936-0
Regular Article
Amplification of matter rogue waves and breathers in quasi-two-dimensional Bose-Einstein condensates
1 Centre for Nonlinear Dynamics,
Bharathidasan University, Tiruchirappalli, 620 024, Tamilnadu, India
2 Instituto de Física Teórica,
Universidade Estadual Paulista, Rua
Dr. Bento Teobaldo Ferraz 271, 01140-070
São Paulo,
Brazil
a
e-mail: velan@cnld.bdu.ac.in
Received:
3
December
2015
Received in final form:
23
December
2015
Published online:
3
February
2016
We construct rogue wave and breather solutions of a quasi-two-dimensional Gross-Pitaevskii equation with a time-dependent interatomic interaction and external trap. We show that the trapping potential and an arbitrary functional parameter that present in the similarity transformation should satisfy a constraint for the considered equation to be integrable and yield the desired solutions. We consider two different forms of functional parameters and investigate how the density of the rogue wave and breather profiles vary with respect to these functional parameters. We also construct vector localized solutions of a two coupled quasi-two-dimensional Bose-Einstein condensate system. We then investigate how the vector localized density profiles modify in the constant density background with respect to the functional parameters. Our results may help to manipulate matter rogue waves experimentally in the two-dimensional Bose-Einstein condensate systems.
Key words: Statistical and Nonlinear Physics
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2016