Gauge-invariant critical exponents for the Ginzburg-Landau model

Abstract

The critical behavior of the Ginzburg-Landau model is described in a manifestly gauge-invariant manner. The gauge-invariant correlation-function exponent is computed to first order in the $4-d$ and $1/n$-expansion, and found to agree with the ordinary exponent obtained in the covariant gauge, with the parameter $\alpha =1-d$ in the gauge-fixing term $({\partial }_{\mu }{A}_{\mu }{)}^2/2\alpha$.

4 pages, no figures

References in corpus (1)

• Elusive physical electron propagator in QED-like effective theories

Cited by in corpus (5)

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• Anomalous Dimension of Dirac's Gauge-Invariant Nonlocal Order Parameter in Ginzburg-Landau Field Theory