paper

Connecting Polyakov Loops to the Thermodynamics of Gauge Theories Using the Gauge-String Duality

arXiv:0910.1261 · doi:10.1103/PhysRevD.81.045011

Abstract

We show that in four-dimensional gauge theories dual to five-dimensional Einstein gravity coupled to a single scalar field in the bulk the derivative of the single heavy quark free energy in the deconfined phase is , where is the speed of sound. This general result provides a direct link between the softest point in the equation of state of strongly-coupled plasmas and the deconfinement phase transition described by the expectation value of the Polyakov loop. We give an explicit example of a gravity dual with black hole solutions that can reproduce the lattice results for the expectation value of the Polyakov loop and the thermodynamics of SU(3) Yang-Mills theory in the (non-perturbative) temperature range between and .

13 pages, 2 figures, minor corrections, version published in PRD

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