Deconfinement transition in two-flavour lattice QCD with dynamical overlap fermions

Abstract

We study the deconfinement transition in two-flavour lattice QCD with dynamical overlap fermions. Our simulations have been carried out on a $16^3\times 6$ lattice at a pion mass around 500 MeV with a special HMC algorithm without any approximation such as fixed topology. We consider several temperatures from 220 MeV which is close to the deconfinement to 280 MeV which is above it. The dependence of the Polyakov loop, the chiral condensate, the Dirac spectra and the connected part of chiral susceptibility on the inverse gauge coupling has been studied. Our data indicates that the transition point lies between $\beta =7.6$ and $\beta =8.1$, but a more precise determination is not possible with our present statistics.

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• QCD Phase Transition in a Strong Magnetic Background
• Chiral transition in a strong magnetic background
• Quark-hadron phase transition in a magnetic field
• Spontaneous generation of local CP violation and inverse magnetic catalysis
• Over-Improved Stout-Link Smearing
• QCD thermodynamics with dynamical overlap fermions
• Low-lying Wilson Dirac operator eigenvector mixing in dynamical overlap Hybrid Monte-Carlo