Dipolar Bose gas in a weak isotropic speckle disorder
arXiv:1503.05579 · doi:10.1103/PhysRevA.91.053619
Abstract
We investigate the properties of a homogeneous dipolar Bose gas in a weak three-dimensional (3D) isotropic speckle disorder at finite temperature. By using the Bogoliubov theory (beyond the mean field), we calculate the condensate and the superfluid fractions as a function of density and strengths of disorder and interaction. The influence of disorder on the anomalous density, the chemical potential and the ground state energy is also analyzed. We show that the peculiar interplay of the DDI and weak disorder makes the superfluid fraction and sound velocity anisotropic.
arXiv comment7 pages, 2 figures. arXiv admin note: text overlap with arXiv:1203.1698 by other authors
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