Quenched QCD at finite temperature with chiral Fermions

Abstract

We study physics at temperatures just above the QCD phase transition (Tc) using chiral (overlap) Fermions in the quenched approximation of lattice QCD. Exact zero modes of the overlap Dirac operator are localized and their frequency of occurrence drops with temperature. This is closely related to axial U(1) symmetry, which remains broken up to 2Tc. After subtracting the effects of these zero modes, chiral symmetry is restored, as indicated by the behavior of the chiral condensate. The pseudoscalar and vector screening masses are close to ideal gas values.

4 pages, 4 figures

References in corpus (5)

• Non-perturbative Renormalisation of Domain Wall Fermions: Quark Bilinears
• Low-lying fermion modes, topology and light hadrons in quenched QCD
• Meson Screening Masses at high Temperature in quenched QCD with improved Wilson Quarks
• Calorons and localization of quark eigenvectors in lattice QCD
• Quenched divergences in the deconfined phase of SU(2) gauge theory

Cited by in corpus (16)

• Theta dependence of SU(N) gauge theories in the presence of a topological term
• The Status of Lattice QCD at Finite Temperature
• Phenomenology of the normal state in-plane transport properties of high-$T_c$ cuprates
• Anomalous Transport Phenomena in Fermi Liquids with Strong Magnetic Fluctuations
• The chiral transition and U(1)_A symmetry restoration from lattice QCD using Domain Wall Fermions
• Microscopic Origin of \boldmath{$U_A(1)$} Symmetry Violation in the High Temperature Phase of QCD
• Mesonic correlation lengths in high-temperature QCD
• Chiral phase transition in lattice QCD as a metal-insulator transition
• Valence quarks in the QCD plasma: quark number susceptibilities and screening
• Lattice calculations of meson correlators and spectral functions at finite temperature
• Eigenvalues and Eigenvectors of the Staggered Dirac Operator at Finite Temperature
• Quasi-static probes of the QCD plasma
• Screening correlators with chiral Fermions
• A note on Neuberger's double pass algorithm
• Hadronic Screening in Improved Taste
• Speed and Adaptability of Overlap Fermion Algorithms