Spin Polarization and Chiral Condensation in 2+1 flavor Nambu-Jona-Lasinio model at finite temperature and baryon chemical potential
arXiv:1812.10238 · doi:10.1103/PhysRevD.100.114012
Abstract
We investigate the ferromagnetic (spin polarization) condensation in (2+1) flavor Nambu Jona-Lasinio(NJL) model with non-zero current quark masses at finite temperature and density which may be relevant in the context of neutron stars. The spin polarization condensation arises due to a tensor type interaction which may be generated due to non-perturbative effects in Quantum Chromodynamics(QCD). In this investigation we have shown the interplay between chiral condensate and spin polarization condensation for different values of tensor coupling. Spin polarization in the case of 2+1 flavor is different from two flavor case because of additional F condensate associated with flavor generator. We find a non-zero value of the two spin condensates in the chirally restored phase. Beyond a certain temperature the spin polarization condensates vanish for rather large quark chemical potentials. The spin condensates affect the chiral phase transition, quark masses, and the quark dispersion relation. The spin polarization condensate appears only in the chiral restored phase for light quarks. For large enough tensor couplings, it is observed that the spin polarization condensate acts as a catalyst for chiral symmetry restoration. Thermodynamic behavior of and are found to be different and they affect the quark masses differently.
arXiv comment21 pages, 10 figures
References in corpus (37)
- QCD Phenomenology based on a Chiral Effective Lagrangian
- Color superconductivity in dense quark matter
- NJL-model analysis of dense quark matter
- Color-Flavor Locking and Chiral Symmetry Breaking in High Density QCD
- From hadrons to quarks in neutron stars: a review
- The QCD phase diagram for small densities from imaginary chemical potential
- Phases of Dense Quarks at Large N_c
- Lattice determination of the critical point of QCD at finite T and μ
- The QCD thermal phase transition in the presence of a small chemical potential
- The QCD Equation of State with almost Physical Quark Masses
- Finite density QCD via imaginary chemical potential
- The Quark-Gluon Plasma in Equilibrium
- The Equation of State for Two Flavor QCD at Non-zero Chemical Potential
- Hadronization in the SU(3) Nambu-Jona-Lasinio Model
- Effects of Strong Magnetic Fields on Neutron Star Structure
- Equation of State of a Dense and Magnetized Fermion System
- Inhomogeneous chiral condensates
- Quantizing magnetic field and quark-hadron phase transition in a neutron star
- The Status of Lattice QCD at Finite Temperature
- Chiral symmetry and density wave in quark matter
- How many phases meet at the chiral critical point?
- The superfluid phases of quark matter: Ginzburg-Landau theory and color neutrality
- Effects of Strong Magnetic Fields in Strange Baryonic Matter
- Ferromagnetism of quark liquid
- Spin Polarization and Color Superconductivity in Quark Matter
- Ferromagnetism of Nuclear Matter in the Relativistic Approach
- Parameter fitting in three-flavor Nambu--Jona-Lasinio model with various regularizations
- Effective Potential Approach to Quark Ferromagnetization in High Density Quark Matter
- Spin polarization and chiral symmetry breaking at finite density
- Chiral Properties of QCD Vacuum in Magnetars- A Nambu-Jona-Lasinio Model with Semi-Classical Approximation
- Dynamically generated magnetic moment in the Wigner-function formalism
- Spontaneous magnetization in high-density quark matter
- Spin Polarized versus Chiral Condensate in Quark Matter at Finite Temperature and Density
- Recent lattice QCD results and phase diagram of strongly interacting matter
- Spin Polarization versus Color-Flavor-Locking in High Density Quark Matter
- Spin polarization and color superconductivity in the Nambu--Jona-Lasinio model at finite temperature
- Spontaneous magnetization under a pseudovector interaction between quarks in high density quark matter