Susceptibilities and the Phase Structure of a Chiral Model with Polyakov Loops

Abstract

In an extension of the Nambu-Jona-Lasinio model where the quarks interact with the temporal gluon field, represented by the Polyakov loop, we explore the relation between the deconfinement and chiral phase transitions. The effect of Polyakov loop dynamics on thermodynamic quantities, on the phase structure at finite temperature and baryon density and on various susceptibilities is presented. Particular emphasis is put on the behavior and properties of the fluctuations of the (approximate) order parameters and their dependence on temperature and net--quark number density. We also discuss how the phase structure of the model is influenced by the coupling of the quarks to the Polyakov loop.

18 pages, 22 figures; text rearranged and references added. results and conclusions unchanged; final version accepted for publication in Phys. Rev. D

References in corpus (3)

• The transition temperature in QCD
• Mesonic correlation functions at finite temperature and density in the Nambu-Jona-Lasinio model with a Polyakov loop
• Quark Number Fluctuations in a Chiral Model at Finite Baryon Chemical Potential

Cited by in corpus (30)

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• Three flavor Nambu-Jona Lasinio model with Polyakov loop and competition with nuclear matter
• Polyakov loop extended NJL model with imaginary chemical potential
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• Determination of QCD phase diagram from the imaginary chemical potential region
• Phase diagram in the imaginary chemical potential region and extended Z3 symmetry
• The QCD critical end point in the PNJL model
• Electrical neutrality and pion modes in the two flavor PNJL model
• Degrees of freedom and the phase transitions of two flavor QCD
• Vector-type four-quark interaction and its impact on QCD phase structure
• Number of the QCD critical points with neutral color superconductivity
• Color neutrality effects in the phase diagram of the PNJL model
• Flavor Diagonal and Off-Diagonal Susceptibilities in a Quasiparticle Model of the Quark-Gluon Plasma
• The Phase Diagram of Hadronic Matter
• Correlations among discontinuities in QCD phase diagram
• Probing the QCD vacuum with an abelian chromomagnetic field: A study within an effective model
• Quark Potential in a Quark-Meson Plasma
• A PNJL model in 0+1 Dimensions
• Density fluctuations and chiral phase transition
• QCD phase diagram and charge fluctuations
• Phase diagram and pion modes of the neutral Nambu-Jona Lasinio model with the Polyakov loop
• Phases of QCD, Polyakov Loop and Quasiparticles
• Critical structure of the QCD medium