Deformed QCD phase structure and entropy oscillation in the presence of a magnetic background

Abstract

The QCD phase transitions are investigated in the presence of an external magnetic field in the Polyakov improved Nambu--Jona-Lasinio (PNJL) model. We detailedly analyze that how the filling of multiple Landau levels by light (up and down) quarks deforms the QCD phase structure under different magnetic fields. In particular, we concentrate on the phase transition under a magnetic field possibly reachable in the non-central heavy-ion collisions at RHIC. The numerical result shows that two first-order transitions or more complicate phase transition in the light quark sector can exist for some magnetic fields, different from the phase structure under a very strong or zero magnetic field. These phenomena are very interesting and possibly relevant to the non-central heavy-ion collision experiments with colliding energies at several $A$ GeV as well as the equation of state of magnetars. Besides, we investigate the entropy oscillation with the increase of baryon density in a magnetic background.

arXiv comment10 pages, 5 figures

References in corpus (72)

• The Chiral Magnetic Effect
• The order of the quantum chromodynamics transition predicted by the standard model of particle physics
• The effects of topological charge change in heavy ion collisions: "Event by event P and CP violation"
• The equation of state in (2+1)-flavor QCD
• Estimate of the magnetic field strength in heavy-ion collisions
• The chiral and deconfinement aspects of the QCD transition
• Full result for the QCD equation of state with 2+1 flavors
• Chiral effective model with the Polyakov loop
• Phases of QCD: lattice thermodynamics and a field theoretical model
• Event-by-event generation of electromagnetic fields in heavy-ion collisions
• The QCD phase diagram for external magnetic fields
• Quantum field theory in a magnetic field: From quantum chromodynamics to graphene and Dirac semimetals
• Electromagnetic field evolution in relativistic heavy-ion collisions
• QCD quark condensate in external magnetic fields
• Polyakov loop, diquarks and the two-flavour phase diagram
• Phase diagrams in the three-flavor Nambu--Jona-Lasinio model with the Polyakov loop
• Event-by-event fluctuations of magnetic and electric fields in heavy ion collisions
• Energy Dependence of Moments of Net-proton Multiplicity Distributions at RHIC
• "Strongly interacting matter in magnetic fields": an overview
• Search for the QCD Critical Point with Fluctuations of Conserved Quantities in Relativistic Heavy-Ion Collisions at RHIC : An Overview
• Anomalous Axion Interactions and Topological Currents in Dense Matter
• Chiral Magnetic Wave
• Hadronization in the SU(3) Nambu-Jona-Lasinio Model
• Higher Moments of Net-proton Multiplicity Distributions at RHIC
• Equation of State of a Dense and Magnetized Fermion System
• Scale for the Phase Diagram of Quantum Chromodynamics
• QCD Phase Transition in a Strong Magnetic Background
• Chiral magnetic wave at finite baryon density and the electric quadrupole moment of quark-gluon plasma in heavy ion collisions
• Quark matter under strong magnetic fields in the Nambu--Jona-Lasinio Model
• Chiral magnetic effect in the PNJL model
• Magnetic Catalysis vs Magnetic Inhibition
• Numerical evidence of chiral magnetic effect in lattice gauge theory
• Phase structure of three and four flavor QCD
• Freeze-out parameters: lattice meets experiment
• Phase diagram and critical endpoint for strongly-interacting quarks
• Thermodynamics of (2+1)-flavor QCD: Confronting Models with Lattice Studies
• 2+1 Flavor Polyakov--Nambu--Jona-Lasinio Model at Finite Temperature and Nonzero Chemical Potential
• ROTATING NEUTRON STAR MODELS WITH MAGNETIC FIELD
• The renormalization group and quark number fluctuations in the Polyakov loop extended quark-meson model at finite baryon density
• Inverse magnetic catalysis induced by sphalerons
• Exploring the QCD Phase Structure with Beam Energy Scan in Heavy-ion Collisions
• Numerical study of chiral symmetry breaking in non-Abelian gauge theory with background magnetic field
• Magnetic catalysis in hot and dense quark matter and quantum fluctuations
• Anomalous magnetic moment of hot quarks, inverse magnetic catalysis and reentrance of chiral symmetry broken phase
• Hot Quark Matter with an Axial Chemical Potential
• Skewness and kurtosis of net baryon-number distributions at small values of the baryon chemical potential
• Phase diagram and critical properties within an effective model of QCD: the Nambu-Jona-Lasinio model coupled to the Polyakov loop
• Two-color QCD with staggered fermions at finite temperature under the influence of a magnetic field
• Normal ground state of dense relativistic matter in a magnetic field
• Large Nc Deconfinement Transition in the Presence of a Magnetic Field
• A search for inverse magnetic catalysis in thermal quark-meson models
• Phase diagram and thermal properties of strong-interaction matter
• Locate QCD Critical End Point in a Continuum Model Study
• Inverse magnetic catalysis from the properties of the QCD coupling in a magnetic field
• The Critical End Point of Quantum Chromodynamics Detected by Chirally Imbalanced Quark Matter
• Inverse Magnetic Catalysis in the three-flavor NJL model with axial-vector interaction
• Magnetic catalysis and inverse magnetic catalysis in nonlocal chiral quark models
• Influence of the inverse magnetic catalysis and the vector interaction in the location of the critical end point
• Surface tension of highly magnetized degenerate quark matter
• Dielectric correction to the Chiral Magnetic Effect
• A non-homogeneous ground state of the low-temperature Sakai-Sugimoto model
• Magnetic shift of the chemical freezeout and electric charge fluctuations
• Quark matter under strong magnetic fields in SU(2) NJL-type models: parameter dependence of the cold dense matter phase diagram
• The influence of a repulsive vector coupling in magnetized quark matter
• Strange quark chiral phase transition in hot 2+1-flavor magnetized quark matter
• Theta vacuum and entanglement interaction in the three-flavor Polyakov-loop extended Nambu-Jona-Lasinio model
• Fluctuations and correlations of hot QCD matter in an external magnetic field
• Phase structure of cold magnetized quark matter within the SU(3) NJL model
• Multiple critical end points in magnetized three flavor quark matter
• Competition between magnetic catalysis effect and chiral rotation effect
• Functional renormalization group study of the Nambu--Jona-Lasinio model at finite temperature and density in an external magnetic field
• Landau levels of cold dense quark matter in a strong magnetic field

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• Recent progresses on QCD phases in a strong magnetic field -- views from Nambu--Jona-Lasinio model
• Electromagnetic fields from the extended Kharzeev-McLerran-Warringa model in relativistic heavy-ion collisions
• Strongly Magnetized Hot QCD Matter and Stochastic Gravitational Wave Background
• Speed of sound and liquid-gas phase transition in nuclear matter
• Dependence of temperatures and kinetic freeze-out volume on centrality in Au-Au and Pb-Pb collisions at high energy
• Kinetic freeze-out temperature and transverse flow velocity in Au-Au collisions at RHIC-BES energies