Compact three-dimensional QED with a {theta} term and axionic confining strings

Journal Article · Mon Sep 01 04:00:00 EDT 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.56.3718· OSTI ID:542347

Brown, W E; Kogan, I I ^[1]

---

1. Theoretical Physics, 1 Keble Road, Oxford, OX1 3NP (United Kingdom)

We discuss three-dimensional compact QED with a {theta} term due to an axionic field. The variational gauge-invariant functional is considered and it is shown that the ground-state energy is independent of {theta} in a leading approximation. The mass gap of the axionic field is found to be dependent upon {theta}, the mass gap of the photon field, and the scalar potential. The vacuum expectation of the Wilson loop is shown to be independent of {theta} in a leading approximation, to obey the area law, and to lead to confinement. We also briefly discuss the properties of axionic confining strings. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 542347
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 6 Vol. 56; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
AXIONS
CONFINEMENT
EXPECTATION VALUE
FUNCTIONALS
GAUGE INVARIANCE
GROUND STATES
PHOTONS
QUANTUM ELECTRODYNAMICS
STRING MODELS
THREE-DIMENSIONAL CALCULATIONS
VACUUM STATES
VARIATIONAL METHODS
WILSON LOOP