Thermodynamics of a Trapped Bose-Condensed Gas

  title={Thermodynamics of a Trapped Bose-Condensed Gas},
  author={S. Giorgini and Lev Petrovich Pitaevskiĭ and Sandro Stringari},
  journal={Journal of Low Temperature Physics},
We investigate the thermodynamic behaviour of a Bose gas interacting with repulsive forces and confined in a harmonic anisotropic trap. We develop the formalism of mean field theory for non uniform systems at finite temperature, based on the generalization of Bogoliubov theory for uniform gases. By employing the WKB semiclassical approximation for the excited states we derive systematic results for the temperature dependence of various thermodynamic quantities: condensate fraction, density… 

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