INVESTIGADORES
LUGO Adrian Rene
artículos
Título:
Mean-field approximation for Abelian and non-Abelian lattice gauge theories at finite temperature
Autor/es:
ELBIO DAGOTTO; ADRIAN R. LUGO; ADRIANA MOREO
Revista:
PHYSICAL REVIEW D
Editorial:
AMER PHYSICAL SOC
Referencias:
Lugar: New York; Año: 1986 vol. 33 p. 526 - 533
ISSN:
1550-7998
Resumen:
The phase diagrams of the Z(2), Z(3), and SU(2) four-dimensional lattice
gauge theories at finite temperature are analyzed by the mean-field
technique including Gaussian corrections. The effect of the finite size
of the lattice in the time Euclidean direction is considered at lowest
order by the Bethe-Peierls approximation. We discuss the gauge
dependence of the results. The predictions for Abelian models are
excellent but for SU(2) we show that in order to reproduce the Monte
Carlosimulations results, the Gaussian corrections are not enough and higher-loop calculations may be necessary.