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T: Fachverband Teilchenphysik

T 19: Gittereichtheorie

T 19.4: Talk

Monday, March 3, 2008, 17:30–17:45, KGI-HS 1023

Polyakov loops from Dirac spectra — Erek Bilgici², •Falk Bruckmann¹, Christof Gattringer², and Christian Hagen¹ — ¹Institut für Theoretische Physik, Universität Regensburg — ²Institut für Physik, FB Theoretische Physik, Universität Graz

For QCD at finite temperature, the Polyakov loop and the chiral condensate are two order parameters characterizing the deconfinement and chiral phase transition, respectively. We present a method that aims at relating the two by representing lattice Polyakov loops through spectral sums of lattice Dirac (or Laplace) operators. By virtue of numerical results we analyze the role of the eigenvalues in the spectral sums and the possibility to define dressed Polyakov loops in this way.