Properties of color-flavor-locked quark matter within a density-dependent quark mass model at finite temperature and under strong magnetic fields

Peng-Cheng Chu; He Liu; Hong-Ming Liu; Xiao-Hua Li; Min Ju; Xu-Hao Wu; Xiao-Min Zhang; Ying Zhou

doi:10.1103/xwb7-wmtj

Properties of color-flavor-locked quark matter within a density-dependent quark mass model at finite temperature and under strong magnetic fields

Peng-Cheng Chu ^1,*, He Liu ^1,†, Hong-Ming Liu ^1,‡, Xiao-Hua Li ^2,3,§, Min Ju ^4,∥, Xu-Hao Wu ^5,¶, Xiao-Min Zhang ^1,**, and Ying Zhou ^6,††

¹The Research Center for Theoretical Physics, Science School, Qingdao University of Technology, Qingdao 266033, China
²School of Nuclear Science and Technology, University of South China, Hengyang 421001, China
³Cooperative Innovation Center for Nuclear Fuel Cycle Technology & Equipment, University of South China, Hengyang 421001, China
⁴College of Science, China University of Petroleum (East China), Qingdao 266580, China
⁵School of Science, Yanshan University, Qinhuangdao 066004, China
⁶School of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, China

^*Contact author: kyois@126.com
^†Contact author: liuhe@qut.edu.cn
^‡Contact author: liuhongming13@126.com
^§Contact author: lixiaohuaphysics@126.com
^∥Contact author: jumin@upc.edu.cn
^¶Contact author: wuhaoysu@ysu.edu.cn
^**Contact author: zhangxm@mail.bnu.edu.cn
^††Contact author: yingzhow@163.com

PDF

Phys. Rev. D 111, 123045 – Published 26 June, 2025

DOI: https://doi.org/10.1103/xwb7-wmtj

Abstract

In this work, we study the properties of the quark matter and quark stars (QSs) in a magnetic-color-flavor-locked (MCFL) quark phase within confined-isospin-density-dependent-mass (CIDDM) model at finite temperature. The entropy per baryon, polytropic index, and the equation of state of color-flavor-locked (CFL) quark matter in constant magnetic fields at finite temperature are investigated, and it is found that considering the effects of the temperature and strong magnetic fields can significantly influence the thermodynamical properties of the charged part and the neutral part of the MCFL quark matter as well as the maximum star mass of the QSs. In particular, we find the polytropic index $γ$ appears smaller in the heavier stars of MCFL quark phase at different isentropic stages under strong magnetic fields within CIDDM model.

Physical Review D

Export citation

Export citation

Properties of color-flavor-locked quark matter within a density-dependent quark mass model at finite temperature and under strong magnetic fields

Abstract

Physics Subject Headings (PhySH)

Authorization Required

Other Options

References (Subscription Required)

Outline

Information

Filter

Filter

Article Lookup

Enter a citation

Properties of color-flavor-locked quark matter within a density-dependent quark mass model at finite temperature and under strong magnetic fields

Abstract

Physics Subject Headings (PhySH)

Authorization Required

Log in via your institution

Log in via APS Member Subscription

Other Options

References (Subscription Required)