Stability and collapse of a hybrid Bose-Einstein condensate of atoms and molecules
arXiv:cond-mat/0105534 · doi:10.1088/0953-4075/34/21/312
Abstract
The dynamics of stability and collapse of a trapped atomic Bose-Einstein condensate (BEC) coupled to a molecular one is studied using the time-dependent Gross-Pitaevskii (GP) equation including a nonlinear interaction term which can transform two atoms into a molecule and vice versa. We find interesting oscillation of the number of atoms and molecules for a BEC of fixed mass. This oscillation is a consequence of continuous transformation in the condensate of two atoms into a molecule and vice versa. For the study of collapse an absorptive contact interaction and an imaginary quartic three-body recombination term are included in the GP equation. It is possible to have a collapse of one or both components when one or more of the nonlinear terms in the GP equation are attractive in nature, respectively.
18 revtex pages, 9 postscript figures, revised version
References in corpus (6)
- Controlled Collapse of a Bose-Einstein Condensate
- Superchemistry: dynamics of coupled atomic and molecular Bose-Einstein condensates
- Coherent molecular solitons in Bose-Einstein condensates
- Stability of trapped Bose-Einstein condensates
- Numerical study of the coupled time-dependent Gross-Pitaevskii equation: Application to Bose-Einstein condensation
- Stability and collapse of a coupled Bose-Einstein condensate
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