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Mean field calculations and defect gases in lattice gauge theory (1983)

Bunk, B. ; Lautrup, B. ; Stamatescu, I. O. ; [et al.]

Springer

The European physical journal 18 (1983), S. 239-248

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ISSN: 1434-6052

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract We investigate the relationship between local defects and the mean field method in lattice gauge theory. In particular we clarify the role of defects in establishing the equivalence between mean field calculations with and without gauge fixing. In two dimensions we derive the area law for the Wilson loop by a mean field calculation incorporating defects. We also establish a general rule about mean field variables which are appropriate to handle defects induced by an action that almost possesses a local symmetry group, and we apply it to theZ(2) Higgs model and to the mixedSU(2)-SO(3) model.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01571365

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