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arXiv · 0803.4116

Dipole Oscillations of a Bose-Einstein Condensate in Presence of Defects and Disorder

M. Albert·T. Paul·N. Pavloff·P. Leboeuf
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Abstract

We consider dipole oscillations of a trapped dilute Bose-Einstein condensate in the presence of a scattering potential consisting either in a localized defect or in an extended disordered potential. In both cases the breaking of superfluidity and the damping of the oscillations are shown to be related to the appearance of a nonlinear dissipative flow. At supersonic velocities the flow becomes asymptotically dissipationless.

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M. Albert, T. Paul, N. Pavloff, P. Leboeuf. 2008-03-28. Dipole Oscillations of a Bose-Einstein Condensate in Presence of Defects and Disorder. https://doi.org/10.1103/physrevlett.100.250405

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