Critical properties of weakly interacting Bose gases as modified by a harmonic confinement

12 May 2017 Reyes-Ayala I. Poveda-Cuevas F. J. Seman J. A. Romero-Rochín V.

The critical properties of the phase transition from a normal gas to a BEC (superfluid) of a harmonically confined Bose gas are addressed with the knowledge of an equation of state of the underlying homogeneous Bose fluid. It is shown that while the presence of the confinement trap arrests the usual divergences of the isothermal compressibility and heat capacities, the critical behavior manifests itself now in the divergence of derivatives of the mentioned susceptibilities... (read more)

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