Dynamics of phase separation in two-species Bose-Einstein condensates with 
vortices

Bandyopadhyay, Soumik; Roy, Arko; Angom, D.

doi:10.1103/PhysRevA.96.043603

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Dynamics of phase separation in two-species Bose-Einstein condensates with vortices

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Roy, Arko
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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https://journals.aps.org/pra/abstract/10.1103/PhysRevA.96.043603
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Citation

Bandyopadhyay, S., Roy, A., & Angom, D. (2017). Dynamics of phase separation in two-species Bose-Einstein condensates with vortices. Physical Review A, 96(4): 043603. doi:10.1103/PhysRevA.96.043603.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002E-8015-E

Abstract

We examine the dynamics associated with the miscibility-immiscibility transition of trapped two-species Bose-Einstein condensates (TBECs) of dilute atomic gases in the presence of vortices. In particular, we consider TBECs of Rb hyperfine states and Rb-Cs mixture. In the case of a singly charged vortex in only one of the condensates, there is enhancement when the vortex is present in the species which occupies the edges at phase separation. But suppression occurs when the vortex is in the species which occupies the core region. To examine the role of the vortex, we quench the interspecies interactions to drive the TBECs from miscible to immiscible phase, and use the time-dependent Gross-Pitaevskii equation to probe the phenomenon of phase separation. We also examine the effects of higher charged vortex to phase separation.