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Parastatistics of charged bosons partly localised by impurities

A. S. Alexandrov·R. T. Giles
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Abstract

Coulomb repulsion is taken into account to derive the thermodynamics of charged bosons in a random external potential. A simple analytical form of the partition function is proposed for the case of non-overlapping localised states (i.e. a small amount of disorder). The density of localised bosons and the specific heat show a peculiar non-uniform temperature dependence below the Bose-Einstein condensation temperature. The superfluid - Bose-glass phase diagram is discussed. A new phase is predicted which is a Bose-glass at T=0 but a superfluid at finite T.

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A. S. Alexandrov, R. T. Giles. 1997-12-01. Parastatistics of charged bosons partly localised by impurities. https://arxiv.org/abs/cond-mat/9704164

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