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2012

Topological susceptibility and axial symmetry at finite temperature

Cossu, Guido, Aoki, Sinya, Hashimoto, Shoji et al.

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We consider the simulation of finite temperature QCD with two flavors of dynamical overlap fermions in order to study the suppression of the axial U(1) symmetry breaking at the chiral phase transition point.

As a preliminary study, pure gauge simulations are performed to investigate how fixing the topology affects physical quantities like the topological susceptibility, $\chi_t$, at finite temperature, showing that it is possible to reconstruct known results from the fixed topology sector.
First results on the degeneracy of meson correlators in the high temperature QGP sector are shown.

Topological susceptibility and axial symmetry at finite temperature · Around

Built on

Current Algebra Theorems for the U(1) Goldstone Boson
Edward Witten · 1979
Earlier work this paper cites.
U(1) Without Instantons
G. Veneziano · 1979
Earlier work this paper cites.
A Remnant of Chiral Symmetry on the Lattice
Paul H. Ginsparg and Kenneth G. Wilson · 1982
Earlier work this paper cites.
Exactly massless quarks on the lattice
Herbert Neuberger · 1998
Earlier work this paper cites.

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Anomalous chiral behavior in quenched lattice QCD
William A. Bardeen, A. Duncan, E. Eichten, and H. Thacker · 2000
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Witten-Veneziano relation, quenched QCD, and overlap fermions
Thomas A. DeGrand and Urs M. Heller · 2002
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The Topological susceptibility of SU(3) gauge theory near T(c)
Christof Gattringer, Roland Hoffmann, and Stefan Schaefer · 2002
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JLQCD’s dynamical overlap project
T. Kaneko et al · 2006
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Then

Topology with dynamical overlap fermions
G.I. Egri, Z. Fodor, S.D. Katz, and K.K. Szabo · 2006
Later among the works it cites.
Finite volume QCD at fixed topological charge
Sinya Aoki, Hidenori Fukaya, Shoji Hashimoto, and Tetsuya Onogi · 2007
Later among the works it cites.
Topological susceptibility in two-flavor lattice QCD with exact chiral symmetry
S. Aoki et al · 2008
Later among the works it cites.
Two-flavor QCD simulation with exact chiral symmetry
S. Aoki et al · 2008
Later among the works it cites.

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