Multigrid propagators in the presence of disordered U(1) gauge fields

The projective multigrid technique for a scalar field propagating in a disordered electromagnetic background is formulated in four dimensions. The possible advantages of a multigrid cycle with only a few levels are discussed in the context of four-dimensional systems. Computer simulations for highly...

Full description

Saved in:
Bibliographic Details
Published in:Physical review. D, Particles and fields Particles and fields, 1991-03, Vol.43 (6), p.1974-1977
Main Authors: BROWER, R. C, MORIARTY, K. J. M, REBBI, C, VICARI, E
Format: Article
Language:English
Subjects:
645300 - High Energy Physics- Particle Invariance Principles & Symmetries
645400 - High Energy Physics- Field Theory
Classical and quantum physics: mechanics and fields
COMPUTERIZED SIMULATION
DIFFERENTIAL EQUATIONS
ELECTROMAGNETIC FIELDS
EQUATIONS
Exact sciences and technology
FIELD THEORIES
FOUR-DIMENSIONAL CALCULATIONS
GAUGE INVARIANCE
INVARIANCE PRINCIPLES
LIE GROUPS
Physics
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PROPAGATOR
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
SCALAR FIELDS
SIMULATION
SYMMETRY GROUPS
U GROUPS
U-1 GROUPS
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The projective multigrid technique for a scalar field propagating in a disordered electromagnetic background is formulated in four dimensions. The possible advantages of a multigrid cycle with only a few levels are discussed in the context of four-dimensional systems. Computer simulations for highly disordered fields (near the confinement transition) yield a speedup by a factor of 4 for one level and about 10 for two levels, relative to the ideal of 4 and 16, respectively, for the zero-field case.
ISSN:0556-2821
1089-4918
DOI:10.1103/PhysRevD.43.1974