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Stability and collapse of a hybrid Bose-Einstein condensate of atoms and molecules

Sadhan K. Adhikari
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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.

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Sadhan K. Adhikari. 2001-07-16. Stability and collapse of a hybrid Bose-Einstein condensate of atoms and molecules. https://doi.org/10.1088/0953-4075%2F34%2F21%2F312

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