Determination of QCD phase diagram from the imaginary chemical potential region

Abstract

We test the reliability of the the Polyakov-loop extended Nambu-Jona-Lasinio (PNJL) model, comparing the model result with the lattice data at nonzero imaginary chemical potential. The PNJL model with the vector-type four-quark and scalar-type eight-quark interactions reproduces the lattice data on the pseudocritical temperatures of the deconfinement and chiral phase transitions. The QCD phase diagram in the real chemical potential region is predicted by the PNJL model. The critical endpoint survives, even if the vector-type four-quark interaction is taken into account.

8 pages, 12 figures

References in corpus (24)

• The Phase Structure of the Polyakov--Quark-Meson Model
• Susceptibilities and the Phase Structure of a Chiral Model with Polyakov Loops
• Canonical partition function and finite density phase transition in lattice QCD
• Susceptibilities and speed of sound from PNJL model
• Mesonic correlation functions at finite temperature and density in the Nambu-Jona-Lasinio model with a Polyakov loop
• 2+1 Flavor Polyakov--Nambu--Jona-Lasinio Model at Finite Temperature and Nonzero Chemical Potential
• Chiral crossover, deconfinement and quarkyonic matter within a Nambu-Jona Lasinio model with the Polyakov loop
• Thermodynamics of the PNJL model
• Critical endpoint in the Polyakov-loop extended NJL model
• Three flavor Nambu-Jona Lasinio model with Polyakov loop and competition with nuclear matter
• The strongly interacting Quark Gluon Plasma, and the critical behaviour of QCD at imaginary chemical potential
• Phase structure of lattice QCD with two flavors of Wilson quarks at finite temperature and chemical potential
• Polyakov loop extended NJL model with imaginary chemical potential
• On the existence of the critical point in finite density lattice QCD
• Chiral phase transition in an extended NJL model with higher-order multi-quark interactions
• Phase diagram in the imaginary chemical potential region and extended Z3 symmetry
• Electrical neutrality and pion modes in the two flavor PNJL model
• Vector-type four-quark interaction and its impact on QCD phase structure
• Enforced neutrality and color-flavor unlocking in the three-flavor Polyakov-loop NJL model
• Lattice QCD at finite temperature and density in the phase-quenched approximation
• Polyakov loop and the color-flavor locked phase of Quantum Chromodynamics
• Lowering the critical temperature with eight-quark interactions
• Effects of a multi-quark interaction on color superconducting phase transition in an extended NJL model
• OZI violating eight-quark interactions as a thermometer for chiral transitions

Cited by in corpus (13)

• QCD phase diagram at finite baryon and isospin chemical potentials
• Width of the QCD transition in a Polyakov-loop DSE model
• Influence of the Polyakov loop on the chiral phase transition in the two flavor chiral quark model
• Dynamical Generation of a Repulsive Vector Contribution to the Quark Pressure
• Correlations among discontinuities in QCD phase diagram
• Determination of the strength of the vector-type four-quark interaction in the entanglement Polyakov-extended Nambu-Jona-Lasino model
• Average phase factor in the PNJL model
• Violations of parity and charge conjugation in the theta vacuum with imaginary chemical potential
• Investigation of meson masses for real and imaginary chemical potential
• The Partition Function Zeroes of Quantum Critical Points
• Practical approach to the sign problem at finite theta-vacuum angle
• A practical solution to the sign problem at finite theta-vacuum angle
• Analytic Continuation in Two-color Finite Density QCD and Chiral Random Matrix Model