物理学报2026，Vol.75Issue(7)：194-201,8.DOI:10.7498/aps.75.20251615
基于MIT袋模型的有限温度与强磁场情况下色味锁夸克物质热力学性质研究
Thermodynamic properties of color-flavor-locked quark matter at finite temperature and under strong magnetic fields within MIT bag model
摘要
Abstract
We investigate the properties of the color-flavor-locked(CFL)quark matter and quark stars(QSs)at finite temperature and under strong magnetic fields within the MIT bag model.We find that the free energy per baryon,energy density,and pressure depend strongly on temperature,thereby affecting the properties of CFL quark stars at finite temperature.The equation of CFL quark matter is stiffen by the increasing temperature,and the pressure becomes anisotropic under strong magnetic fields.For the isentropic stages,the maximum star mass at finite temperature increases with the value of the entropy per baryon.Furthermore,the polytropic index of CFL quark star matter decreases with the increment of the star mass,while the temperature of the star matter increases with the entropy per baryon.Our results also indicate that the thermodynamic quantities of the CFL quark matter may exhibit distinct dependencies on temperature and magnetic fields.关键词
色味锁态/夸克星/磁星Key words
color-flavor-locked phase/quark star/magnetar引用本文复制引用
初鹏程,刘可,王姣姣,吴澎,刘玉珩,刘鹤,刘宏铭..基于MIT袋模型的有限温度与强磁场情况下色味锁夸克物质热力学性质研究[J].物理学报,2026,75(7):194-201,8.基金项目
国家自然科学基金(批准号:12575134,11975132,12205158,11505100)、山东省自然科学基金(批准号:ZR2022JQ04,ZR2025QC1487,ZR2021QA037,ZR2019YQ01)和青岛市自然科学基金(批准号:project 25-1-1-4-zyyd-jch)资助的课题. Project supported by the National Natural Science Foundation of China(Grant Nos.12575134,11975132,12205158,11505100),the Natural Science Foundation of Shandong Province,China(Grant Nos.ZR2022JQ04,ZR2025QC1487,ZR2021QA037,ZR2019YQ01),and the Natural Science Foundation of Qingdao,China(Grant No.project 25-1-1-4-zyyd-jch). （批准号:12575134,11975132,12205158,11505100）
