Abstract.
We address a possible relation between the expectation value of the Polyakov loop in pure gluodynamics and full QCD based on Polyakov Chiral Quark Models where constituent quarks and the Polyakov loop are coupled in a minimal way. To this end, we use a center symmetry-breaking Gaussian model for the Polyakov loop distribution which accurately reproduces gluodynamics data above the phase transition in terms of dimension-2 gluon condensate. The role played by the quantum and local nature of the Polyakov loop is emphasized.
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Megıas, E., Ruiz Arriola, E. & Salcedo, L.L. Dimension-2 condensates and Polyakov Chiral Quark Models. Eur. Phys. J. A 31, 553–556 (2007). https://doi.org/10.1140/epja/i2006-10218-2
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DOI: https://doi.org/10.1140/epja/i2006-10218-2