REAL-SPACE RENORMALIZATION-GROUP ANALYSIS OF U(1)-GAUGE THEORY WITH THETA-TERM IN 2-DIMENSIONS

Authors
HASSAN AS IMACHI M YONEYAMA H
Citation
As. Hassan et al., REAL-SPACE RENORMALIZATION-GROUP ANALYSIS OF U(1)-GAUGE THEORY WITH THETA-TERM IN 2-DIMENSIONS, Progress of theoretical physics, 93(1), 1995, pp. 161-172
Citations number
11
Categorie Soggetti
Physics
Journal title
Progress of theoretical physics → ACNP
ISSN journal
0033068X
Volume
93
Issue
1
Year of publication
1995
Pages
161 - 172
Database
ISI
SICI code
0033-068X(1995)93:1<161:RRAOUT>2.0.ZU;2-O
Abstract
U(1) lattice gauge theory with theta-term is investigated by real spac e renormalization group approach. Flows of renormalized coupling const ants are analyzed. For each theta, renormalization flows converge to a single trajectory irrespective of bare coupling constants of real act ion. For theta not equal pi the system is in the confinement phase con trolled by an infrared fixed point. We found a phase transition at the ta=pi. Imaginary part of the action given by theta-term stays fixed un der renormalization group transformations leading to deconfinement.