Phase diagram and critical properties within an effective model of QCD: the Nambu-Jona-Lasinio model coupled to the Polyakov loop

Abstract

We investigate the phase diagram of the so-called Polyakov--Nambu--Jona-Lasinio model at finite temperature and non-zero chemical potential with three quark flavors. Chiral and deconfinement phase transitions are discussed and the relevant order-like parameters are analyzed. The results are compared with simple thermodynamic expectations and lattice data. We present the phase diagram in the ($T,{\mu }_B)$ plane, paying special attention to the critical end point: as the strength of the flavor-mixing interaction becomes weaker, the critical end point moves to low temperatures and can even disappear.

46 pages, 11 figures, 3 tables

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• The QCD critical end point in the PNJL model
• Pseudoscalars Mesons in Hot, Dense Matter
• Degrees of freedom and the phase transitions of two flavor QCD
• A QCD chiral critical point at small chemical potential: is it there or not?
• The QCD critical end point in the SU(3) Nambu--Jona-Lasinio model
• Effects of mesonic correlations in the QCD phase transition
• Quarkonia and Quark Drip Lines in Quark-Gluon Plasma
• Finite momentum meson correlation functions in a QCD plasma
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Cited by in corpus (60)

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• Transport coefficients from the Nambu-Jona-Lasinio model for $SU(3{)}_f$
• Deconfinement and chiral restoration within the SU(3) Polyakov--Nambu--Jona-Lasinio and entangled Polyakov--Nambu--Jona-Lasinio models in an external magnetic field
• The Surface Tension of Quark Matter in a Geometrical Approach
• The QCD Critical End Point Under Strong Magnetic Fields
• Two-solar-mass hybrid stars: a two model description with the Nambu-Jona-Lasinio quark model
• Phase transition and critical end point driven by an external magnetic field in asymmetric quark matter
• Evolution of proto-neutron stars with the hadron-quark phase transition
• Deconfinement, chiral symmetry restoration and thermodynamics of (2+1)--flavor hot QCD matter in an external magnetic field
• Influence of the inverse magnetic catalysis and the vector interaction in the location of the critical end point
• Influence of vector interactions on the hadron-quark/gluon phase transition
• Equation of state of a quark-meson mixture in the improved-PNJL model at finite chemical potential
• Regularizing thermo and magnetic contributions within nonrenormalizable theories
• The nuclear liquid-gas phase transition at large $N_c$ in the Van der Waals approximation
• Isoscalar-vector interaction and hybrid quark core in massive neutron stars
• Thermodynamic properties and transport coefficients of QCD matter within the non-extensive Polyakov-Nambu-Jona-Lasinio model
• Strange quark chiral phase transition in hot 2+1-flavor magnetized quark matter
• Speed of sound in QCD matter
• Phase transition of strongly interacting matter with a chemical potential dependent Polyakov loop potential
• Multiple critical end points in magnetized three flavor quark matter
• Quark and Polyakov-loop correlations in effective models at zero and non-vanishing density
• Functional renormalization group study of the critical region of the quark-meson model with vector interactions
• Exploring criticality in the QCD-like two quark flavour models
• Causality violation and the speed of sound of hot and dense quark matter in the Nambu--Jona-Lasinio model
• Phase Diagram, Scalar-Pseudoscalar Meson Behavior and Restoration of Symmetries in (2+1) Polyakov-Nambu-Jona-Lasinio Model
• Deformed QCD phase structure and entropy oscillation in the presence of a magnetic background
• Effects of entanglement and instanton suppression at finite temperature in a SU(2) EPNJL model with anomaly
• The presence of a critical end point in the QCD phase diagram from the net-baryon number fluctuations
• Speed of sound and liquid-gas phase transition in nuclear matter
• The strange critical endpoint and isentropic trajectories in an Extended PNJL Model with Eight Quark Interactions
• QCD pressure: renormalization group optimized perturbation theory confronts lattice
• Hadron-quark phase transition: the QCD phase diagram and stellar conversion
• Net baryon-number fluctuations in magnetized quark matter
• Susceptibilities and critical exponents within the Nambu--Jona-Lasinio model
• Nontopological Soliton in the Polyakov Quark Meson Model
• Interplay between chiral and axial symmetries in a SU(2) Nambu--Jona-Lasinio Model with the Polyakov loop
• QCD phase diagram and critical exponents within the nonextensive Polyakov-Nambu-Jona-Lasinio model
• Quark scattering off quarks and hadrons
• Role of the conserved charges in the chiral symmetry restoration phase transition
• Influence of the vector interaction and an external magnetic field on the isentropes near the chiral critical end point
• Nonextensive effects on QCD chiral phase diagram and baryon-number fluctuations within Polyakov-Nambu-Jona-Lasinio model
• The QCD critical point from the Nambu-Jona-Lasino model with a scalar-vector interaction
• Renormalization group improved pressure for hot and dense quark matter
• Critical end point in a thermo-magnetic nonlocal NJL model
• Baryon number fluctuations induced by hadronic interactions at low temperature and large chemical potential
• The pion-kaon scattering amplitude and the $K^0(700)$ and $K^{\ast }(892)$ resonances at finite temperature
• Color-flavor dependence of the Nambu-Jona-Lasinio model and QCD phase diagram
• Light quarks at finite temperature: chiral restoration and the fate of the $U(1{)}_A$ symmetry
• Color superconductivity in the Nambu Jona-Lasinio model complemented by a Polyakov loop
• Sensitivity of predictions in an effective model -- application to the chiral critical end point position in the Nambu--Jona-Lasinio model
• Thermomagnetic effects on light pseudo-scalar meson masses within the SU(3) Nambu-Jona--Lasinio model
• Bubble nucleation in the two-flavor quark-meson model
• Medium separation scheme effects on the magnetized and cold two-flavor superconducting quark matter
• Bubble dynamics in the Polyakov quark-meson model
• Quark matter with an anisotropic momentum distribution
• Building models of quarks and gluons with an arbitrary number of colors using Cartan-Polyakov loops
• Mesons and diquarks in a color superconducting regime
• Aspects of isentropic trajectories in chiral effective models
• Isentropic thermodynamics across the hadron-quark mixed phase in a two-phase model with a PNJL quark description
• Baryons in the Nambu Jona-Lasinio models