PNJL model at zero temperature: The three-flavor case

Mattos, O. A.; Frederico, T.; Lenzi, César H.; Dutra, M.; Lourenço, O.

doi:10.1103/physrevd.104.116001

Cited by 11 publications

(5 citation statements)

References 101 publications

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“…Significant literature can be found where the PNJL model has been employed to investigate the deconfinement transition and chiral symmetry restoration in the strongly interacting hot and dense magnetized matter [3,20,[51][52][53][54][55][56]. It has been observed that, the presence of uniform background magnetic field is likely to catalyze (or strengthen) the chiral condensate implying magnetic catalysis (MC) [27,29].…”

Section: Introductionmentioning

confidence: 99%

Anisotropic pressure of magnetized quark matter with anomalous magnetic moment

Chaudhuri

Ghosh²,

Roy

et al. 2022

Phys. Rev. D

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We investigate magnetic field ( ) dependence of constituent quark mass, the longitudinal and transverse pressure as well as the magnetization and magnetic susceptibility of strongly interacting quark matter. We employ the two-flavour Polyakov Nambu-Jona-Lasinio model with the inclusion of the anomalous magnetic moment (AMM) of the quarks at finite temperature ( ) and finite quark chemical potential ( ) capturing different stages of chiral phase transition. We find that the transverse pressure, magnetization and magnetic susceptibility become highly oscillatory for large values of in the chiral symmetry broken phase. However the oscillations cease to occur at higher values of and when chiral symmetry is (partially) restored and the anisotropic nature of the pressure becomes significant even at smaller values of . As the inclusion of AMM of the quarks leads to inverse magnetic catalysis of the transition temperature we observe that the variations of transverse pressure, magnetization and magnetic susceptibility are significantly modified in the vicinity of the chiral transition temperature. Furthermore, above the chiral transition temperature the magnetic susceptibility is found to remain positive for a wide range of indicating a paramagnetic character of the strongly interacting quark matter. Finally, we have also examined the magnetism of strongly interacting matter in the quarkyonic phase. The obtained results could be useful for a magnetohydrodynamic evolution of hot and dense matter created in heavy-ion collisions.

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Section: Introductionmentioning

confidence: 99%

Anisotropic pressure of magnetized quark matter with anomalous magnetic moment

Chaudhuri

Ghosh²,

Roy

et al. 2022

Phys. Rev. D

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“…For such massive hybrid stars, a non negligible quark core R Q = 2.3 ± 2.2 km is predicted, and the depth of deconfined matter can reach values as large as ≈ 9 km if the couplings are such that the strangeness content is limited to less than ≈ 10%. It could be interesting to see if these results would be mitigated when additional freedom is taken in the quark EoS, for example by the introduction of color superconductivity or other effects of QCD [18,25,49,85,86].…”

Section: Discussionmentioning

confidence: 99%

A Bayesian analysis of the properties of hybrid stars with the NJL model

Pfaff,

Hansen,

Gulminelli

2021

Preprint

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“…Firstly, we consider the 2 + 1 flavor Polyakov-Nambu-Jona-Lasino model (PNJL) model coupled to the background gluon field [44]…”

Section: Trace Anomaly In Effective Modelsmentioning

confidence: 99%

A Bridge between Trace Anomalies and Deconfinement Phase Transitions

Sheng,

2024

Symmetry

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Inspired by the fact that both the dilaton potential encoding the trace anomalies of QCD and the Polyakov loop potential measuring the deconfinement phase transition can be expressed in the logarithmic forms, as well as the fact that the scale symmetry is expected to be restoring and colors are deconfined in extreme conditions such as high temperatures and/or densities, we conjecture a relation between the dilaton potential and the Polyakov loop potential. Explicitly, we start from the Coleman–Weinberg type potential of a real scalar field—a dilaton or conformal compensator—and make an ansatz of the relation between this scalar field and the Polyakov loop to obtain the Polyakov loop potential, which can be parameterized in Lattice QCD (LQCD) in the pure glue sector. We find that the coefficients of Polyakov potential fitted from Lattice data are automatically satisfied in this ansatz, the locations of deconfinement and scale restoration are locked to each other, and the first-order phase transition can be realized. Extensions to the low-energy effective quark models are also discussed. The conjectured relation may deepen our understanding of the evolution of the universe, the mechanism of electroweak symmetry breaking, the phase diagram of QCD matter, and the properties of neutron stars.

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PNJL model at zero temperature: The three-flavor case

Cited by 11 publications

References 101 publications

Anisotropic pressure of magnetized quark matter with anomalous magnetic moment

Anisotropic pressure of magnetized quark matter with anomalous magnetic moment

A Bayesian analysis of the properties of hybrid stars with the NJL model

A Bridge between Trace Anomalies and Deconfinement Phase Transitions

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