Critical Behaviour of a Homogeneous Bose Gas at Finite Temperature

1998/08/31 by Jens O. Andersen, Michael Strickland, Andersen, Jens O. +1
Physics and Astronomy · #Condensed Matter (cond-mat) #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #cond-mat #hep-th

paper · pdf · doi:10.48550/arxiv.cond-mat/9808346

Typo in Eq. (10) corrected

arxiv created 1999/07/02 · arxiv updated 2009/11/30

Abstract

A homogeneous non-relativistic Bose gas is investigated at finite temperature using renormalization group methods. The phase transition is shown to be second order and the effective chemical potential and the effective quartic coupling vanish at the critical temperature. We obtain the critical exponent ν=0.73 at leading order in the derivative expansion.

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