Quark magnetar in the three-flavor Nambu-Jona-Lasinio model with vector interactions and a magnetized gluon potential
文献类型：期刊论文
| 作者 | Chu, Peng-Cheng1,2,3; Wang, Xin1,2; Chen, Lie-Wen1,2,4; Huang, Mei3,5 |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2015-01-12 |
| 卷号 | 91 |
| ISSN号 | 1550-7998 |
| DOI | 10.1103/PhysRevD.91.023003 |
| 英文摘要 | We investigate properties of strange quark matter in the framework of the SU(3) Nambu-Jona-Lasinio model with vector interactions under strong magnetic fields. The effects of vector-isoscalar and vector-isovector interactions on the equation of state of strange quark matter are investigated, and it is found that the equation of state is not sensitive to the vector-isovector interaction; however, a repulsive interaction in the vector-isoscalar channel gives a stiffer equation of state for cold dense quark matter. In the presence of a magnetic field, gluons will be magnetized via quark loops, and the contribution from magnetized gluons to the equation of state is also estimated. The sound velocity square is a quantity to measure the hardness or softness of dense quark matter, and in the Nambu-Jona-Lasinio model without vector interaction at zero magnetic field, the sound velocity square is always less than 1/3. It is found that a repulsive vector-isoscalar interaction and a positive pressure contribution from magnetized gluons can enhance the sound velocity square, which can even reach 1. To construct quark magnetars under strong magnetic fields, we consider anisotropic pressures and use a density-dependent magnetic field profile to mimic the magnetic field distribution in a quark star. We also analyze the parameter region for the magnitude of vector-isoscalar interaction and the contribution from magnetized gluons in order to produce two-solar-mass quark magnetars. |
| WOS关键词 | CHIRAL-SYMMETRY RESTORATION ; HEAVY-ION COLLISIONS ; NEUTRON-STAR MATTER ; GAMMA-RAY BURSTS ; KAON CONDENSATION ; FINITE-TEMPERATURE ; PHASE-TRANSITION ; NJL-MODEL ; FIELD ; BREAKING |
| 资助项目 | Science and Technology Commission of Shanghai Municipality[11DZ2260700] |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000348764100001 |
| 源URL | [http://119.78.100.186/handle/113462/57070]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Chu, Peng-Cheng |
| 作者单位 | 1.Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China 2.Shanghai Jiao Tong Univ, Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China 3.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 4.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China 5.Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chu, Peng-Cheng,Wang, Xin,Chen, Lie-Wen,et al. Quark magnetar in the three-flavor Nambu-Jona-Lasinio model with vector interactions and a magnetized gluon potential[J]. PHYSICAL REVIEW D,2015,91. |
| APA | Chu, Peng-Cheng,Wang, Xin,Chen, Lie-Wen,&Huang, Mei.(2015).Quark magnetar in the three-flavor Nambu-Jona-Lasinio model with vector interactions and a magnetized gluon potential.PHYSICAL REVIEW D,91. |
| MLA | Chu, Peng-Cheng,et al."Quark magnetar in the three-flavor Nambu-Jona-Lasinio model with vector interactions and a magnetized gluon potential".PHYSICAL REVIEW D 91(2015). |
入库方式： OAI收割
来源：近代物理研究所
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