MONTE-CARLO SIMULATIONS OF THE CP3 MODEL AND U(1) GAUGE-THEORY IN THEPRESENCE OF A THETA-TERM

Authors
PLEFKA JC SAMUEL S
Citation
Jc. Plefka et S. Samuel, MONTE-CARLO SIMULATIONS OF THE CP3 MODEL AND U(1) GAUGE-THEORY IN THEPRESENCE OF A THETA-TERM, Nuclear physics. B, Proceedings supplement, 63, 1998, pp. 715-717
Citations number
14
Categorie Soggetti
Physics, Particles & Fields
Journal title
Nuclear physics. B, Proceedings supplement → ACNP
ISSN journal
09205632
Volume
63
Year of publication
1998
Pages
715 - 717
Database
ISI
SICI code
0920-5632(1998)63:<715:MSOTCM>2.0.ZU;2-G
Abstract
A theta term, which couples to topological charge, is added to the two -dimensional lattice CP3 model and U(1) gauge theory. Monte Carlo simu lations are performed and compared to strong-coupling character expans ions. In certain instances, a flattening behavior occurs in the free-e nergy at sufficiently large theta, but the effect is an artifact of th e simulation methods.