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Studies of Wigner-Weyl solution and external magnetic field in an NJL model
Wang, Qing-Wu1; Cui, Zhu-Fang2,4; Zong, Hong-Shi2,3,4
2016-11-07
Source PublicationPHYSICAL REVIEW D
ISSN2470-0010
Volume94Issue:9Pages:9
Corresponding AuthorWang, Qing-Wu(qw.wang@scu.edu.cn)
AbstractIn this paper, we explore the dynamical chiral symmetry breaking by employing a two-flavor Nambu-Jona-Lasinio (NJL) model with constant external magnetic field. After changing the coupling strength of the NJL model, we found that the Wigner-Weyl solution and Nambu-Goldstone solution of the gap equation could coexist. Even though the gap equation only has Nambu-Goldstone solution at zero temperature, the Wigner-Weyl solution may appear when magnetic field strength and temperature are nonzero. For the Nambu-Goldstone solution, magnetic field and temperature have opposite impact on the chiral dynamical mass. In the chiral limit, the magnetic field dependence of chiral dynamical mass reveals the existence of inverse magnetic catalysis for the Wigner-Weyl solution. However, the two phases have different responses to the magnetic field and temperature in the chiral limit but the same beyond chiral limit. Furthermore, the order of the transition from the Nambu-Goldstone phase to Wigner-Weyl phase depends on the choice of model parameters. We have also calculated the susceptibilities of dynamical mass with respect to the temperature.
DOI10.1103/PhysRevD.94.096003
WOS KeywordDYSON-SCHWINGER EQUATIONS ; JONA-LASINIO MODEL ; GROSS-NEVEU MODEL ; ELECTROMAGNETIC-FIELD ; FINITE-TEMPERATURE ; PHASE-TRANSITIONS ; DYNAMICAL MODEL ; QCD ; SUPERCONDUCTIVITY ; SUSCEPTIBILITIES
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Particles & Fields
WOS IDWOS:000415787500005
PublisherAMER PHYSICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22758
Collection中国科学院紫金山天文台
Corresponding AuthorWang, Qing-Wu
Affiliation1.Sichuan Univ, Dept Phys, Chengdu 610064, Sichuan, Peoples R China
2.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China
3.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China
4.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang, Qing-Wu,Cui, Zhu-Fang,Zong, Hong-Shi. Studies of Wigner-Weyl solution and external magnetic field in an NJL model[J]. PHYSICAL REVIEW D,2016,94(9):9.
APA Wang, Qing-Wu,Cui, Zhu-Fang,&Zong, Hong-Shi.(2016).Studies of Wigner-Weyl solution and external magnetic field in an NJL model.PHYSICAL REVIEW D,94(9),9.
MLA Wang, Qing-Wu,et al."Studies of Wigner-Weyl solution and external magnetic field in an NJL model".PHYSICAL REVIEW D 94.9(2016):9.
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