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arXiv · 1401.4029

Weakly nonadditive Polychronakos statistics

Andrij Rovenchak
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Abstract

A two-parametric fractional statistics is proposed, which can be used to model a weakly-interacting Bose-system. It is shown that the parameters of the introduced weakly nonadditive Polychronakos statistics can be linked to effects of interactions as well as finite-size corrections. The calculations of the specific heat and condensate fraction of the model system corresponding to harmonically trapped Rb-87 atoms are made. The behavior of the specific heat of three-dimensional isotropic harmonic oscillators with respect to the values of the statistics parameters is studied in the temperature domain including the BEC-like phase transition point.

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Andrij Rovenchak. 2014-05-19. Weakly nonadditive Polychronakos statistics. https://doi.org/10.1103/physreva.89.052116

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