Effective Action Method for Computing Next to Leading Corrections of $O(N)$ Models

Details Effective Action Method for Computing Next to Leading Corrections of $O(N)$ Models Effective Action Method for Computing Next to Leading Corrections of $O(N)$ Models

1993-11-05

arxiv.org/abs/cond-mat/9311012v1

Physics

Condensed Matter

p. 8, LATEX, DFF 193/9/1993

Scientific paper

10.1016/0370-2693(93)90798-M

We compute the corrections of next to leading order in the ${1 \over N}$
expansion to the effective potential of a system described by a Ginzburg-Landau
model with $N$ components and quartic interaction, in the case of spontaneous
symmetry breaking. The method we apply allows to generalize in a simple way the
so-called Self-Consistent Screened Approximation (SCSA).

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