Critical Behaviour of a Homogeneous Bose Gas at Finite Temperature

Details Critical Behaviour of a Homogeneous Bose Gas at Finite Temperature Critical Behaviour of a Homogeneous Bose Gas at Finite Temperature

1998-08-31

arxiv.org/abs/cond-mat/9808346v8

Physics

Condensed Matter

Typo in Eq. (10) corrected

Scientific paper

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 $\nu =0.73$
at leading order in the derivative expansion.

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