paper

Duality and Enhanced Gauge Symmetry in 2+1 Dimensions

arXiv:hep-th/0104204 · doi:10.1088/0305-4470/35/4/315

Abstract

We investigate the enlarged CP(N) model in 2+1 dimensions. This is a hybrid of two CP(N) models coupled with each other in a dual symmetric fashion, and it exhibits the gauge symmetry enhancement and radiative induction of the finite off-diagonal gauge boson mass as in the 1+1 dimensional case. We solve the mass gap equations and study the fixed point structure in the large-N limit. We find an interacting ultraviolet fixed point which is in contrast with the 1+1 dimensional case. We also compute the large-N effective gauge action explicitly.

26 pags, latex, 5 .eps figures, typos corrected. To appear in J. Phys. A

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