Static quark anti-quark pair in SU(2) gauge theory

Abstract

We study singlet and triplet correlation functions of static quark anti-quark pair defined through gauge invariant time-like Wilson loops and Polyakov loop correlators in finite temperature SU(2) gauge theory. We use the Luescher-Weisz multilevel algorithm, which allows to calculate these correlators at very low temperatures. We observe that the naive separation of singlet and triplet states in general does not hold non-perturbatively, however, is recovered in the limit of small separation and the temperature dependence of the corresponding correlators is indeed very different.

ReVTeX, 11 pages, 5 figures

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• Polyakov loop and correlator of Polyakov loops at next-to-next-to-leading order
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