Solitons in Bose-Einstein Condensates with time-dependent atomic scattering length in an expulsive parabolic and complex potential
arXiv:0806.3608 · doi:10.1103/PhysRevA.78.023608
Abstract
We present two families of analytical solutions of the one-dimensional nonlinear Schrödinger equation which describe the dynamics of bright and dark solitons in Bose-Einstein condensates (BECs) with the time-dependent interatomic interaction in an expulsive parabolic and complex potential. We also demonstrate that the lifetime of both a bright soliton and a dark soliton in BECs can be extended by reducing both the ratio of the axial oscillation frequency to radial oscillation frequency and the loss of atoms. It is interested that a train of bright solitons may be excited with a strong enough background. An experimental protocol is further designed for observing this phenomenon.
8 pages, 5 figures
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- Controlled self-similar matter waves in PT-symmetric waveguide
- Collisionally inhomogeneous Bose-Einstein condensates with binary and three body interactions in a bichromatic optical lattice
- Dissipative Superfluidity in a Molecular Bose-Einstein Condensate
- Dynamics of bisolitonic matter waves in a Bose-Einstein condensate subjected to an atomic beam splitter and gravity