Dipolar Bose-Einstein Condensates with Weak Disorder
arXiv:1103.2437 · doi:10.1103/PhysRevA.84.021608
Abstract
A homogeneous polarized dipolar Bose-Einstein condensate is considered in the presence of weak quenched disorder within mean-field theory at zero temperature. By first solving perturbatively the underlying Gross-Pitaevskii equation and then performing disorder ensemble averages for physical observables, it is shown that the anisotropy of the two-particle interaction is passed on to both the superfluid density and the sound velocity.
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