Quark matter at finite temperature under strong magnetic fields within Nambu–Jona-Lasinio model. (8th July 2020)

• Record Type: Journal Article
• Authors: Chu, Peng-Cheng; Zhou, Yi; Chen, Chang; Li, Xiao-Hua; Ma, Hong-Yang
• Is Part Of: Journal of physics. Volume 47:Number 8(2020:Aug.)
• Publication Date: 2020-07-08
• Subjects: quark matter -- symmetry energy -- compact stars; Nuclear physics -- Periodicals; Particles (Nuclear physics) -- Periodicals; Physique nucléaire -- Périodiques; Particules (Physique nucléaire) -- Périodiques; Kernfysica; Elementaire deeltjes; 539.7
• DOI: 10.1088/1361-6471/ab9b06
• Languages: English
• ISSNs: 0954-3899

Abstract

Abstract: The quark matter symmetry free energy and the thermodynamical properties of strange quark matter (SQM) in strong magnetic fields and non-zero temperature cases are discussed in this work within Nambu–Jona-Lasinio (NJL) model by considering two kinds of vector interactions. The properties of the proto-quark stars (PQSs) are also studied by introducing a density-dependent magnetic field strength distribution and assuming two 'extreme' magnetic orientation cases inside the quark stars (QSs). The results indicate that the strength and orientation distribution of the magnetic fields in the QSs and the heating/cooling process during the star evolution may both influence the star mass of QSs within SU(3) NJL model.