Effect of scattering lengths on the dynamics of a two-component Bose-Einstein condensate
arXiv:1009.2122 · doi:10.1103/PhysRevA.82.063608
Abstract
We examine the effect of the intra- and interspecies scattering lengths on the dynamics of a two-component Bose-Einstein condensate, particularly focusing on the existence and stability of solitonic excitations. For each type of possible soliton pairs stability ranges are presented in tabulated form. We also compare the numerically established stability of bright-bright, bright-dark and dark-dark solitons with our analytical prediction and with that of Painlevé-analysis of the dynamical equation. We demonstrate that tuning the inter-species scattering length away from the predicted value (keeping the intra-species coupling fixed) breaks the stability of the soliton pairs.
21 pages, 10 figures
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- Drag force in bimodal cubic-quintic nonlinear Schrödinger equation
- Macroscopic quantum superpositon states of two-component Bose-Einstein condensates
- Rebound-through transition of bright-bright solitons collision in two species condensates with repulsive interspecies interactions