Entanglement between deconfinement transition and chiral symmetry restoration

Details Entanglement between deconfinement transition and chiral symmetry restoration Entanglement between deconfinement transition and chiral symmetry restoration

2010-06-18

arxiv.org/abs/1006.3648v2

Phys.Rev.D82: 076003, 2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 16 figures, published version

Scientific paper

10.1103/PhysRevD.82.076003

We extend the Polyakov-loop extended Nambu-Jona-Lasinio (PNJL) model by introducing an effective four-quark vertex depending on Polyakov loop. The effective vertex generates entanglement interactions between Polyakov loop and chiral condensate. The new model is consistent with lattice QCD data at imaginary quark-number chemical potential and real and imaginary isospin chemical potentials, particularly on strong correlation between the chiral and deconfinement transitions and also on the quark-mass dependence of the order of the Roberge-Weiss endpoint predicted by lattice QCD very lately. We investigate an influence of the entanglement interactions on a location of the tricritical point at real isospin chemical potential and a location of the critical endpoint at real quark-number chemical potential.

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