Phase structure of U(1) lattice gauge theory with monopole term

Details Phase structure of U(1) lattice gauge theory with monopole term Phase structure of U(1) lattice gauge theory with monopole term

1998-06-30

arxiv.org/abs/hep-lat/9806036v1

Phys.Rev. D59 (1999) 014510

Physics

High Energy Physics

High Energy Physics - Lattice

15 pages, LaTeX, 3 figures

Scientific paper

10.1103/PhysRevD.59.014510

We investigate four-dimensional compact U(1) lattice gauge theory with a monopole term added to the Wilson action. First we consider the phase structure at negative $\beta$, revealing some properties of a third phase region there, in particular the existence of a number of different states. Then our present studies concentrate on larger values of the monopole coupling $\lambda$ where the confinement-Coulomb phase transition turns out to become of second order. Performing a finite-size analysis we find that the critical exponent $\nu$ is close to, however, different from the gaussian value and that in the range considered $\nu$ increases somewhat with $\lambda$.

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