Effective monopoles in noncompact lattice QED

Journal Article · Sun Nov 12 23:00:00 EST 1989 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.63.2169· OSTI ID:5148940

Hands, S; Wensley, R ^[1]

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1. Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801 (US)

In currently used lattice formulations of quantum electrodynamics, even though gauge fields are introduced as noncompact degrees of freedom, the constraints of gauge invariance imply that fermion fields are sensitive to features best described by compact or periodic variables such as magnetic monopoles. Results from a quenched simulation are presented, showing the existence of a percolation threshold for monopole current networks near the chiral-symmetry-breaking transition already known to occur from previous studies. Implications for the mechanism driving the chiral transition are discussed.

• OSTI ID: 5148940
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 63:20; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

645202 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
COMPOSITE MODELS
COUPLING CONSTANTS
ELECTRODYNAMICS
ELEMENTARY PARTICLES
EXTENDED PARTICLE MODEL
FERMIONS
FIELD THEORIES
GAUGE INVARIANCE
INVARIANCE PRINCIPLES
LATTICE FIELD THEORY
MAGNETIC MONOPOLES
MATHEMATICAL MODELS
MONOPOLES
MONTE CARLO METHOD
PARTICLE MODELS
PHASE TRANSFORMATIONS
POSTULATED PARTICLES
PROPAGATOR
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
STRING MODELS
SYMMETRY
SYMMETRY BREAKING