Force on a moving point impurity due to quantum fluctuations in a Bose-Einstein condensate
arXiv:cond-mat/0601289 · doi:10.1103/PhysRevA.74.013613
Abstract
An analytic expression is derived for a force on a weak point impurity arising from the scattering of quantum fluctuations in a slow-moving, weakly interacting, three-dimensional Bose-Einstein condensate at zero temperature. In an infinitely extended geometry, this force is shown to exist at any arbitrarily small flow velocity below Landau's critical velocity. Furthermore, this force is shown to be directly proportional to the flow speed.
v2: corrected notation and other minor changes
References in corpus (1)
Cited by in corpus (11)
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