Color-flavor-locked matter in a nonuniform strong magnetic field

被引：4

作者：

Liang, Hao ^{[1
]}

Wen, Xin-Jian ^{[1
]}

机构：

[1] Shanxi Univ, State Key Lab Quantum Opt & Quantum Opt Devices, Inst Theoret Phys, Taiyuan 030006, Shanxi, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2019年 / 34卷 / 29期

基金：

中国国家自然科学基金;

关键词：

Color flavor locking; strange quark matter; nonuniform strong magnetic field; CHIRAL-SYMMETRY BREAKING; QUARK; CONDENSATION; EQUATION; DENSITY; STATE;

D O I：

10.1142/S0217751X19501707

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The magnetic-color-flavor-locked quark matter is investigated in the Nambu-Jona-Lasinio model. Strong nonuniform magnetic fields are employed in order to mimic the spatial dependence of the magnetic field strength at high densities. We find that the gap solution depends strongly on the diquark coupling interaction. Based on the requirement that the parallel pressure should be an increasing function of the chemical potential, an upper limit on the central magnetic field 3.58 x 10(18) G is obtained, which increases slightly with the diquark interaction strength. Furthermore, much stronger central magnetic field could occur in the stars composed of magnetic-color-flavor matter than that of ordinary strange quark matter.

引用

页数：12

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[1] Nambu-Jona-Lasinio model of dense three-flavor matter with axial anomaly: The low temperature critical point and BEC-BCS diquark crossover [J].