Results 31 to 40 of about 10,075 (182)
Quark spin polarization in high density quark matter
EPJ Web of Conferences, 2014 It is shown that there exists a possibility of spontaneous spin polarization in high density symmetric quark matter under the tensor-type four-point interaction between quarks in the Nambu-Jona-Lasinio model.
Tsue Yasuhiko +3 more
doaj +1 more source
Nambu–Jona-Lasinio model in a parallel electromagnetic field
Physics Letters B, 2018 We explore the features of the UA(1) and chiral symmetry breaking of the Nambu–Jona-Lasinio model without the Kobayashi–Maskawa–'t Hooft determinant term in the presence of a parallel electromagnetic field. We show that the electromagnetic chiral anomaly
Lingxiao Wang +3 more
doaj +1 more source
Influence of the regularization scheme in the QCD phase diagram in the PNJL model
Open Physics, 2023 In the context of the SU(2) quark flavor version of the Nambu–Jona-Lasinio model extended by the Polyakov loop, the effect of the regularization scheme on the quantum chromodynamics phase structure at finite volume was studied. The way in which the phase
Saucedo Jonathan Rincon +3 more
doaj +1 more source
Nonlinear sigma model approach for phase disorder transitions and the pseudogap phase in chiral Gross-Neveu, Nambu-Jona-Lasinio models and strong-coupling superconductors [PDF]
, 1999 We briefly review the nonlinear sigma model approach for the subject of increasing interest: "two-step" phase transitions in the Gross-Neveu and the modified Nambu-Jona-Lasinio models at low $N$ and condensation from pseudogap phase in strong-coupling ...
Aslamazov L. G. +7 more
core +2 more sources
Chiral Phase Transition in Linear Sigma Model with Nonextensive Statistical Mechanics
Advances in High Energy Physics, Volume 2017, Issue 1, 2017., 2017 From the nonextensive statistical mechanics, we investigate the chiral phase transition at finite temperature T and baryon chemical potential μB in the framework of the linear sigma model. The corresponding nonextensive distribution, based on Tsallis’ statistics, is characterized by a dimensionless nonextensive parameter, q, and the results in the ...
Ke-Ming Shen +5 more
wiley +1 more source
Journal of High Energy Physics, 2021 We analyze the chiral phase transition of the Nambu-Jona-Lasinio model in the cold and dense region on the lattice, developing the Grassmann version of the anisotropic tensor renormalization group algorithm.
Shinichiro Akiyama +3 more
doaj +1 more source
Effect of Strong Magnetic Field on Competing Order Parameters in Two‐Flavor Dense Quark Matter
Advances in High Energy Physics, Volume 2017, Issue 1, 2017., 2017 We study the effect of strong magnetic field on competing chiral and diquark order parameters in a regime of moderately dense quark matter. The interdependence of the chiral and diquark condensates through nonperturbative quark mass and strong coupling effects is analyzed in a two‐flavor Nambu‐Jona‐Lasinio (NJL) model. In the weak magnetic field limit,
Tanumoy Mandal +2 more
wiley +1 more source
Nambu-Jona Lasinio and Nonlinear Sigma Models in Condensed Matter Systems
, 2019 We review various connections between condensed matter systems with the Nambu-Jona Lasinio model and nonlinear sigma models. The field theoretical description of interacting systems offers a systematic framework to describe the dynamical generation of ...
Nitta, Muneto, Yoshii, Ryosuke
core +1 more source
Some properties of two Nambu--Jona-Lasinio -type models with inputs from lattice QCD [PDF]
, 2012 We investigate the phase diagram of the so-called Polyakov--Nambu--Jona-Lasinio (PNJL) model at finite temperature and nonzero chemical potential. The calculations are performed in the light and strange quark sectors ($u$, $d$, $s$), which includes the ...
Costa, P. +5 more
core +3 more sources
QCD Thermodynamics and Magnetization in Nonzero Magnetic Field
Advances in High Energy Physics, Volume 2016, Issue 1, 2016., 2016 In nonzero magnetic field, the magnetic properties and thermodynamics of the quantum‐chromodynamic (QCD) matter are studied in the hadron resonance gas and the Polyakov linear‐sigma models and compared with recent lattice calculations. Both models are fairly suited to describe the degrees of freedom in the hadronic phase.
Abdel Nasser Tawfik +4 more
wiley +1 more source