Monopoles, confinement and deconfinement of (2+1)D compact lattice QED in external fields

Abstract

The compact Abelian model in three space--time dimensions is studied in the presence of external electromagnetic fields at finite temperatures. We show that the deconfinement phase transition is independent on the strength of the external fields. This result is in agreement with our observation that the external fields create small--size magnetic dipoles from the vacuum which do not influence the confining properties of the model. Contrary to the deconfinement phase, the internal field in the direction of the applied external field is attenuated in the confinement phase, this screening becomes stronger with decreasing temperature.

22 pages, 24 EPS figures, LaTeX uses epsfig.sty

References in corpus (3)

• A lattice study of 3D compact QED at finite temperature
• QED${}_3$ with Dynamical Fermions in an External Magnetic Field
• Instanton molecules at high temperature - the Georgi-Glashow model and beyond

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• Chiral Symmetry Breaking in Planar QED in External Magnetic Fields
• Conformal field theory and the hot phase of three-dimensional U(1) gauge theory
• Gluodynamics in external field in dual superconductor approach