Internal energy and condensate fraction of a trapped interacting Bose gas
A. Minguzzi, S. Conti, M. P. Tosi
Abstract
We present a semiclassical two-fluid model for an interacting Bose gas confined in an anisotropic harmonic trap and solve it in the experimentally relevant region for a spin-polarized gas of Rb-87 atoms, obtaining the temperature dependence of the internal energy and of the condensate fraction. Our results are in agreement with recent experimental observations by Ensher et al.
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