Progress of Theoretical Physics
Supplement No.168 (2007) pp. 276-284
URL : http://ptp.ipap.jp/link?PTPS/168/276/
DOI : 10.1143/PTPS.168.276

Fuzzy Bags and Wilson Lines

Robert D. Pisarski

I start with an elementary observation about the pressure in the deconfined phase of a SU(3) gauge theory without quarks. This suggests a “fuzzy” bag model for the analogous pressure in QCD, with dynamical quarks. I then sketch how the deconfined phase might be described using an effective theory of Wilson lines. To leading order in weak coupling, the effective electric field appears in a form familiar from the lattice theory of Banks and Ukawa.

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