Bulk viscosity of hot dense Quark matter in PNJL model

Abstract

Starting from the Kubo formula and the the QCD low energy theorem, we study the the bulk viscosity of hot dense quark matter in the PNJL model from the equation of state . We show that the bulk viscosity has a sharp peak near the chiral phase transition, and the ratio of bulk viscosity over entropy rises dramatically in the vicinity of the phase transition. These results agrees with that from lattice and other model calculations. In addition, we show that the increase of chemical potential raises the bulk viscosity.

8 Pages, 3 figures in Latex. arXiv admin note: text overlap with arXiv:1107.5113 by other authors

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Cited by in corpus (11)

• Shear and Bulk Viscosities of Quark Matter from Quark-Meson Fluctuations in the Nambu--Jona-Lasinio model
• Thermodynamic properties and transport coefficients of QCD matter within the non-extensive Polyakov-Nambu-Jona-Lasinio model
• Transport coefficients in a finite volume Polyakov--Nambu--Jona-Lasinio model
• Reparametrizing the Polyakov$-$Nambu$-$Jona-Lasinio model
• Temperature Effect on Shear and Bulk Viscosities of QCD Matter
• Thermodynamics of strongly interacting matter in a hybrid model
• Phenomenological bound on the viscosity of the hadron resonance gas
• Bulk viscosity for pion and nucleon thermal fluctuation in the hadron resonance gas model
• Bulk viscosity of two-flavor quark matter from the Kubo formalism
• A comparative study on two different expressions of Bulk viscosity in the PNJL model
• Bulk Viscosity of Hot Quark Plasma from Non-Equilibrium Statistical Operator