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arXiv:cond-mat/0101391 · Journal of Physics A Mathematical and General

Renormalization-group analysis of the dilute Bose system inddimensions at finite temperature

M. Crişan, D. Bodea, I. Grosu, I. Ţifrea

Published Jan 7, 2002• 17 citations
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Abstract

We study the d -dimensional Bose gas at finite temperature using the renormalization-group method. The flow-equations and the free energy are obtained for dimension d , and the cases d < 2 and d = 2 have been analysed in the limit of low and high temperatures. The critical temperature, the coherence length and the specific heat of a two-dimensional Bose gas are obtained using a regular solution for the coupling constant which is obtained from the scaling equations. The relevance of the dilute Bose gas for recent experimental results is also discussed.

DOI
10.1088/0305-4470/35/2/305

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