The nature of phase transitions in hot and dense nuclear matter is discussed in the framework of the effective Polyakov loop SU(2) Nambu—Jona-Lasinio (PNJL) model with two quark flavors, one of a few models that describe the properties of chiral and confinement-deconfinement phase transitions. The paper considers the parameters of the model and examines additional interactions that influence the structure of the phase diagram and the positions of critical points in it. The effect of meson correlations on the thermodynamic properties of a quark-meson system is examined. The evolution of the model with changes in understanding the phase diagram structure is discussed.
Keywords: phase diagram, phase transition, spontaneous breakdown of chiral symmetry, confinement, critical end point, thermodynamics of quark matter, meson correlations PACS:12.38.−t, 12.39.−x, 25.75.Nq (all) DOI:10.3367/UFNe.0186.201604b.0387 URL: https://ufn.ru/en/articles/2016/4/b/ Citation: Kalinovsky Yu L, Toneev V D, Friesen A V "QCD phase diagram in the Polyakov loop SU(2) Nambu—Jona-Lasinio model" Phys. Usp.59 367–382 (2016)
PT Journal Article
TI QCD phase diagram in the Polyakov loop SU(2) Nambu—Jona-Lasinio model
AU Kalinovsky Yu L
FAU Kalinovsky YL
AU Toneev V D
FAU Toneev VD
AU Friesen A V
FAU Friesen AV
DP 10 Apr, 2016
TA Phys. Usp.
SO Phys. Usp. 2016 Apr 10;59(4):367-382
Received: 13th, July 2015, revised: 1st, December 2015, accepted: 7th, December 2015