Dynamics of two-component Bose-Einstein condensates in rotating traps

Details Dynamics of two-component Bose-Einstein condensates in rotating traps Dynamics of two-component Bose-Einstein condensates in rotating traps

2008-05-07

arxiv.org/abs/0805.0847v7

Physics

Condensed Matter

Other Condensed Matter

v4: more material added. 9 pages, 6 figures v5: figures fixed v6:some rewording v7:fixed figures

Scientific paper

The dynamics of two-component Bose-Einstein condensates in rotating traps is investigated. In the Thomas-Fermi limit, equations of motion are derived showing multiple static solutions for a vortex free condensate. Dynamic stability analysis of these solutions and comparison with Truncated Wigner simulations enables us to identify the regimes for which vortex states will occur. In addition, our analysis predicts centre-of-mass oscillations that are induced by interspecies interactions and affect each component separately. For attractive interspecies interactions, these oscillations lead to a stable symmetry broken state.

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