Loss of superfluidity in a Bose-Einstein condensate on an optical lattice via a novel classical phase transition
arXiv:cond-mat/0211215 · doi:10.1016/S0375-9601(03)00059-8
Abstract
We predict the loss of superfluidity in a Bose-Einstein condensate (BEC) trapped in a combined optical and axially-symmetric harmonic potentials during a resonant collective excitation initiated by a periodic modulation of the atomic scattering length , when the modulation frequency equals twice the radial trapping frequency or multiples thereof. This classical dynamical transition is marked by a loss of superfluidity in the BEC and a subsequent destruction of the interference pattern upon free expansion. Suggestion for future experiment is made.
arXiv comment10 Latex pages, 6 eps figures
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Cited by in corpus (16)
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