"Light from chaos" in two dimensions

Details "Light from chaos" in two dimensions "Light from chaos" in two dimensions

2008-01-03

arxiv.org/abs/0801.0587v1

Int.J.Mod.Phys.A23:4545-4556,2008

Physics

High Energy Physics

High Energy Physics - Lattice

6 pages, 7 figures

Scientific paper

10.1142/S0217751X08041281

We perform a Monte-Carlo study of the lattice two-dimensional gauged XY-model. Our results confirm the strong-coupling expansion arguments that for sufficiently small values of the spin-spin coupling the ``gauge symmetry breaking" terms decouple and the long-distance physics is that of the unbroken pure gauge theory. We find no evidence for the existence, conjectured earlier, of massless states near a critical value of the spin-spin coupling. We comment on recent remarks in the literature on the use of gauged XY-models in proposed constructions of chiral lattice gauge theories.

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