Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2000-11-28
Phys.Rev. D64 (2001) 014505
Physics
High Energy Physics
High Energy Physics - Theory
TeX file, 31 pages
Scientific paper
10.1103/PhysRevD.64.014505
We analyze previously proposed order parameters for the confinement - deconfinement transition in lattice SU(2) Yang-Mills theory, defined as vacuum expectation value (v.e.v.) of monopole fields in abelian projection gauges. We show that they exhibit some inconsistency in the treatment of small scales, due to a violation of Dirac quantization condition for fluxes. We propose a new order parameter avoiding this inconsistency. It can be interpreted as v.e.v. of the field of a regular monopole in any abelian projection gauge, but it is independent of the choice of the abelian projection. Furthermore, being constructed in terms of surfaces of center vortices, it has also a natural interpretation in the approach of center dominance.
Froehlich Juerg
Marchetti P. A.
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