Quark matter at finite temperature under strong magnetic fields within Nambu–Jona-Lasinio model

Chu, Peng-Cheng; Zhou, Yao; Chen, Chang; Li, Xiaohua; Ma, Hongyang

doi:10.1088/1361-6471/ab9b06

Cited by 15 publications

(5 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some of the examples are: MIT bag model [36,37], Dyson-Schwinger equation approach [38][39][40][41], quark meson coupling (QMC) model [42], quark mass density dependent (QMDD) model [43][44][45][46][47], Nambu-Jona-Lasinio (NJL) model [37,48], confined density dependent quark mass (CDDM) model [8,49,50], chiral SU(3) quark mean field (CQMF) model [51,52], Polyakov quark meson coupling (PQMC) model [53,54] and Polyakov extended NJL (PNJL) model [55][56][57]. Many authors have studied the properties of pure SQM in β-equilibrium [58-61], proto-strange quark stars (PSQS) [62][63][64][65][66][67], as well as hybrid star with SQM in the core [68,69] (also, see references therein).…”

Section: (): V-volmentioning

confidence: 99%

Properties of strange quark matter and strange quark stars

Kumari

Kumar

2021

Eur. Phys. J. C

View full text Add to dashboard Cite

A Polyakov chiral $$\text {SU(3)}$$ SU(3) quark mean-field (PCQMF) model is applied to study the properties of strange quark matter (SQM) and strange quark star (SQS) in $$\beta $$ β -equilibrium. The effect of increasing the strength of vector interactions on the effective constituent quark mass, particle fractions, and the thermodynamical properties such as pressure, energy density, and the speed of sound is investigated. We investigate the above properties for the SQM relevant for various stages of star evolution, i.e., considering with/without trapped neutrinos and zero/finite entropy. The finite lepton fraction and the entropy of the medium is observed to cause the stiffness in the equation of state (EoS). Finally, we calculate the mass-radius relation and the dimensionless tidal deformability within the present model calculations and compare the results to the recent studies.

show abstract

Section: (): V-volmentioning

confidence: 99%

Properties of strange quark matter and strange quark stars

Kumari

Kumar

2021

Eur. Phys. J. C

View full text Add to dashboard Cite

show abstract

“…The possible existence of QSs is still one of the most important fields of modern nuclear physics and astrophysics [12][13][14][15][16][17][18][19][20][21][22][23][24]. If one considered the supermassive compact stars as QSs, the observations may rule out some of the conventional phenomenological models of quark matter, whereas there still exist some other models which are able to produce massive quark star cases with strong isospin interaction inside the star matter [25][26][27][28][29][30][31][32][33][34]. It can be found that the EOS of the quark star matter in their descriptions becomes very stiff so as to support such massive quark stars.…”

Section: Introductionmentioning

confidence: 99%

Properties of color-flavor locked matter in a quasiparticle model

Chu,

Cao,

Liu

et al. 2023

Eur. Phys. J. C

Self Cite

View full text Add to dashboard Cite

We investigate the thermodynamical properties of color-flavor locked (CFL) quark matter at zero temperature, finite temperature, and strong magnetic field by using quasiparticle model. We find that considering CFL quark phase can significantly change the equation of state (EOS) as well as the properties of quark matter in quark stars (QSs) at finite temperature or under magnetic field within quasiparticle model. In particular, our results have shown that we can provide the large QSs within CFL quark phase from quasiparticle model by satisfying both the upper limit of $$\Lambda _{1.4}<800$$ Λ 1.4 < 800 for the low-spin priors of 1.4 solar mass pulsars from GW170817 and the new estimates of the mass-radius region from PSR J0740 + 6620, PSR J0030 + 0451, HESS J1731-347, and 4U 1702-429, which cannot be obtained by considering the QSs with SQM within quasiparticle model.

show abstract

“…The presence of a strong magnetic field introduces Landau levels for the charged particles and hence has significant effects on the stability of SQM [30][31][32]. The properties of SQM in a strong magnetic field have attracted increasing interest over the past few decades, for example, the effects of an external magnetic field on the symmetry energy [33,34], equation of state [35] and surface tension of quark matter [36], and r-mode instability [37,38] as well as structure properties of strange stars [39][40][41][42][43], etc. In addition, the presence of a magnetic field can also affect the in-medium chiral condensates [44], and hence the critical temperature of the chiral phase transition [45][46][47][48][49][50][51][52], as well as the deconfinement transition [53][54][55][56][57].…”

Section: Introductionmentioning

confidence: 99%

Landau quantization and spin polarization of cold magnetized quark matter

Lu,

Xu,

Wen

et al. 2022

Preprint

View full text Add to dashboard Cite

The magnetic field and density behaviors of various thermodynamic quantities of strange quark matter under compact star conditions are investigated in the framework of the thermodynamically self-consistent quasiparticle model. For individual species, a larger number density ni leads to a larger magnetic field strength threshold that align all particles parallel or antiparallel to the magnetic field. Accordingly, in contrast to the finite baryon density effect which reduces the spin polarization of magnetized strange quark matter, the magnetic field effect leads to an enhancement of it. We also compute the sound velocity as a function of the baryon density and find the sound velocity shows an obvious oscillation with increasing density. Except for the oscillation, similar to the zero-magnetic field case that the sound velocity grows with increasing density and approaches the conformal limit V 2 s = 1/3 at high densities from below.

show abstract

Quark matter at finite temperature under strong magnetic fields within Nambu–Jona-Lasinio model

Cited by 15 publications

References 56 publications

Properties of strange quark matter and strange quark stars

Properties of strange quark matter and strange quark stars

Properties of color-flavor locked matter in a quasiparticle model

Landau quantization and spin polarization of cold magnetized quark matter

Contact Info

Product

Resources

About