Monte Carlo Studies of Two-Dimensional Systems with a $\theta$ Term

Abstract

A $\theta$ term, which couples to topological charge, is added to the two-dimensional lattice CP^3 model and U(1) gauge theory. Monte Carlo simulations are performed and compared to strong-coupling character expansions. In certain instances, a flattening behavior occurs in the free-energy at sufficiently large $\theta$, but the effect is an artifact of the simulation methods.

27 pages, Latex file requiring epsf.tex for five eps figures, accepted for publication in Physical Review D

References in corpus (1)

• A Strong-Coupling Analysis of the Lattice $C{P}^{N-1}$ Models in the Presence of a $\theta$ Term

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