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CPN−1 coupled to gauge fields: Mean field theory and monte carlo results

Authors
Journal
Physics Letters B
0370-2693
Publisher
Elsevier
Publication Date
Volume
116
Issue
1
Identifiers
DOI: 10.1016/0370-2693(82)90032-6

Abstract

Abstract We define a two parameter lattice field theory which interpolates between the O (2 N) Heisenberg model, pure U(1) gauge theory, and a lattice version of the CP N −1 model. The phase diagram in space-time dimension d=4 is obtained by Monte Carlo simulation on a 4 4 lattice, and the nature of the phases is discussed in mean field approximation.

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