https://doi.org/10.1140/epjd/e2011-20485-4
Regular Article
Matter rogue wave in Bose-Einstein condensates with attractive atomic interaction
1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, P.R. China
2 Institute of Theoretical Physics, Shanxi University, Taiyuan, 030006, P.R. China
3 Department of Applied Physics and School of Information Engineering, Hebei University of Technology, Tianjin 300401, P.R. China
a e-mail: wlqx@iphy.ac.cn
Received: 23 June 2011
Published online: 6 October 2011
We investigate the matter rogue wave in Bose-Einstein condensates with attractive interatomic interaction analytically and numerically. Our results show that the formation of rogue wave is mainly due to the accumulation of energy and atoms toward to its central part; and the decay rate of atoms in unstable matter rogue wave can be effectively controlled by modulating the trapping frequency of external potential. The numerical simulation demonstrate that even a small periodic perturbation with small modulation frequency can induce the generation of a near-ideal matter rogue wave. We also give an experimental protocol to observe this phenomenon in Bose-Einstein condensates.
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2011
