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GENERALIZED VILLAIN ANALYSIS FOR U(1) MODEL WITH AN EXTENDED LATTICE ACTION

XU ZAI-XIN ZHU BEN-YUAN

GENERALIZED VILLAIN ANALYSIS FOR U(1) MODEL WITH AN EXTENDED LATTICE ACTION

XU ZAI-XIN, ZHU BEN-YUAN
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  • Received Date:  26 October 1987
  • Published Online:  06 July 2005

GENERALIZED VILLAIN ANALYSIS FOR U(1) MODEL WITH AN EXTENDED LATTICE ACTION

  • 1. 华东师范大学物理系

Abstract: A generalized Villain formula is introduced. In this general Gaussian approximation, the topological properties of the electromagnetic loop for compact QED in four dimensions with an action which is the admixture of two terms with any different periodicities are investigated. The common properties of the phase structure, including two kinds of different partial confinement phases and a two-photon phase, of this model in the whole parameter space are discussed. By using the modified Migdal-Kadanoff group transformation, the phase diagrams for the cases of (N1, N2) = (l,5), (1,6), (1,7) are obtained. The numerical results are consistent with the theoretical analysis.

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