Monte Carlo simulations of the CP^3 model and U(1) gauge theory in the presence of a theta-term

Details Monte Carlo simulations of the CP^3 model and U(1) gauge theory in the presence of a theta-term Monte Carlo simulations of the CP^3 model and U(1) gauge theory in the presence of a theta-term

1997-09-18

arxiv.org/abs/hep-lat/9709059v1

Nucl.Phys.Proc.Suppl. 63 (1998) 715-717

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, Latex, 4 figures, Contribution to LATTICE 97, Edinburgh, UK, 22-26 July 1997

Scientific paper

10.1016/S0920-5632(97)00882-7

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.

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