Polyakov loop and the color-flavor locked phase of Quantum Chromodynamics

Abstract

We consider the Polyakov Nambu Jona Lasinio model with three massless quarks at high density and moderate temperature in the superconductive color flavor locking phase. We compute the critical temperature $T_c$ as a function of the baryonic chemical potential for the phase transition from the superconductive state to the normal phase. We find that $T_c$ is higher by a factor 1.5 -2 in comparison to the model containing no Polyakov loop. We also compute the specific heat $C_v$ near the second order phase transition and we show that the inclusion of the Polyakov loop does not change the value of the critical exponent.

7 pages, 2 figures, RevTeX4 style

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Cited by in corpus (30)

• Phase diagrams in the three-flavor Nambu--Jona-Lasinio model with the Polyakov loop
• Chiral crossover, deconfinement and quarkyonic matter within a Nambu-Jona Lasinio model with the Polyakov loop
• Three flavor Nambu-Jona Lasinio model with Polyakov loop and competition with nuclear matter
• Entanglement between deconfinement transition and chiral symmetry restoration
• Polyakov loop extended NJL model with imaginary chemical potential
• Phase diagram in the imaginary chemical potential region and extended Z3 symmetry
• Determination of QCD phase diagram from the imaginary chemical potential region
• Quarkyonic phase from quenched dynamical holographic QCD model
• Gauge dynamics in the PNJL model: Color neutrality and Casimir scaling
• Roberge-Weiss phase transition and its endpoint
• Electrical neutrality and pion modes in the two flavor PNJL model
• QCD phase diagram at finite baryon and isospin chemical potentials
• 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
• Effective models of two-flavor QCD: finite $\mu$ and $m_q$-dependence
• QCD phase diagram at imaginary baryon and isospin chemical potentials
• Correlations among discontinuities in QCD phase diagram
• Meson mass at real and imaginary chemical potentials
• Model prediction for temperature dependence of meson pole masses from lattice QCD results on meson screening masses
• Effective models of two-flavor QCD: from small towards large $m_q$
• Average phase factor in the PNJL model
• Violations of parity and charge conjugation in the theta vacuum with imaginary chemical potential
• Determination of $U(1{)}_{\mathrm{A}}$ restoration from pion and $a_0$-meson screening masses: Toward the chiral regime
• Probing the QCD vacuum with an abelian chromomagnetic field: A study within an effective model
• Spontaneous parity and charge-conjugation violations at real isospin and imaginary baryon chemical potentials
• Effective model approach to meson screening masses at finite temperature
• A PNJL model in 0+1 Dimensions
• Polyakov-Nambu-Jona Lasinio model and Color-Flavor-Locked phase of QCD
• Phase diagram and pion modes of the neutral Nambu-Jona Lasinio model with the Polyakov loop
• Extrapolation for meson screening masses from imaginary to real chemical potential