Study of the topological vacuum structure of SU(2) gluodynamics at T > 0 with overlap fermions and improved action

Details Study of the topological vacuum structure of SU(2) gluodynamics at T > 0 with overlap fermions and improved action Study of the topological vacuum structure of SU(2) gluodynamics at T > 0 with overlap fermions and improved action

2007-10-15

arxiv.org/abs/0710.2799v1

PoSLAT2007:315,2007

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 11 figures, presented at the XXV International Symposium on Lattice Field Theory, July 30 - August 4 2007, Regensburg

Scientific paper

We study SU(2) gluodynamics at finite temperature near the deconfining phase transition. We create the lattice ensembles using the tadpole improved Luscher-Weisz action. The overlap Dirac operator is used to determine the following three aspects of vacuum structure: (i) The topological susceptibility is evaluated at various temperatures across the phase transition, (ii) the overlap fermion spectral density is determined and found to depend on the Polyakov loop above the phase transition and (iii) the corresponding localization properties of low lying eigenmodes are investigated.

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