Abstract
We formulate a method for computing the effective Lagrangian of the Polyakov line on the lattice. Using mean field approximation we calculate the effective potential for high temperatures. The result agrees with recent lattice simulations. We reveal a new type of ultraviolet divergence (coming from longitudinal gluons) which dominates the effective potential and explains the discrepancy of the lattice simulations and standard perturbative calculations performed in covariant gauges.
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On December 26 2012 our esteemed colleague Dmitri Diakonov passed away untimely early. At that time he was working with one of us (V.P.) on a follow up project to a paper we had published in June of that year. This article is based on this cooperation and we dedicate it to the memory of our friend Dmitri Diakonov.
ArXiv ePrint: 1308.2328
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Diakonov, D., Petrov, V., Schadler, HP. et al. Effective Lagrangian for the Polyakov line on a lattice. J. High Energ. Phys. 2013, 207 (2013). https://doi.org/10.1007/JHEP11(2013)207
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DOI: https://doi.org/10.1007/JHEP11(2013)207