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Shi, S; Yang, YC; Xia, YH; Cui, ZF; Liu, XJ; Zong, HS; Shi, S (reprint author), Nanjing Univ, Inst Acoust, Key Lab Modern Acoust, MOE, Nanjing 210093, Jiangsu, Peoples R China.
Dynamical chiral symmetry breaking in the NJL model with a constant external magnetic field
Source PublicationPHYSICAL REVIEW D
Language英语
AbstractIn this paper, we develop a new method that is different from the Schwinger proper time method to deduce the fermion propagator with a constant external magnetic field. In the NJL model, we use this method to find the gap equation at zero and nonzero temperature and give the numerical results and phase diagram between the magnetic field and temperature. Additionally, we introduce the current mass to study the susceptibilities because there is a new parameter (the strength of the external magnetic field) in this problem. Corresponding to this new parameter, we define a new susceptibility X-B to compare with the other two susceptibilities Xc (chiral susceptibility) and X-T (thermal susceptibility). All three susceptibilities show that when the current mass is not zero, the phase transition is a crossover, while for comparison, in the chiral limit, the susceptibilities show a second order phase transition. Last, we give the critical coefficients of different susceptibilities in the chiral limit.
2015
Volume91Issue:3Pages:36006
Subject AreaAstronomy & Astrophysics ; Physics
DOIhttp://dx.doi.org/10.1103/PhysRevD.91.036006
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China [11275097, 11475085, 11265017] ; National Natural Science Foundation of China [11275097, 11475085, 11265017] ; National Natural Science Foundation of China [11275097, 11475085, 11265017] ; National Natural Science Foundation of China [11275097, 11475085, 11265017] ; China Postdoctoral Science Foundation [2014M561621] ; China Postdoctoral Science Foundation [2014M561621] ; China Postdoctoral Science Foundation [2014M561621] ; China Postdoctoral Science Foundation [2014M561621] ; Jiangsu Planned Projects for Postdoctoral Research Funds [1401116C, 1402006C] ; Jiangsu Planned Projects for Postdoctoral Research Funds [1401116C, 1402006C] ; Jiangsu Planned Projects for Postdoctoral Research Funds [1401116C, 1402006C] ; Jiangsu Planned Projects for Postdoctoral Research Funds [1401116C, 1402006C] ; National Basic Research Program of China [2012CB921504] ; National Basic Research Program of China [2012CB921504] ; National Basic Research Program of China [2012CB921504] ; National Basic Research Program of China [2012CB921504] ; Guizhou province outstanding youth science and technology talent cultivation object special funds [QKHRZ(2013)28] ; Guizhou province outstanding youth science and technology talent cultivation object special funds [QKHRZ(2013)28] ; Guizhou province outstanding youth science and technology talent cultivation object special funds [QKHRZ(2013)28] ; Guizhou province outstanding youth science and technology talent cultivation object special funds [QKHRZ(2013)28]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21085
Collection理论物理所科研产出_SCI论文
Corresponding AuthorShi, S (reprint author), Nanjing Univ, Inst Acoust, Key Lab Modern Acoust, MOE, Nanjing 210093, Jiangsu, Peoples R China.
Recommended Citation
GB/T 7714
Shi, S,Yang, YC,Xia, YH,et al. Dynamical chiral symmetry breaking in the NJL model with a constant external magnetic field[J]. PHYSICAL REVIEW D,2015,91(3):36006.
APA Shi, S.,Yang, YC.,Xia, YH.,Cui, ZF.,Liu, XJ.,...&Shi, S .(2015).Dynamical chiral symmetry breaking in the NJL model with a constant external magnetic field.PHYSICAL REVIEW D,91(3),36006.
MLA Shi, S,et al."Dynamical chiral symmetry breaking in the NJL model with a constant external magnetic field".PHYSICAL REVIEW D 91.3(2015):36006.
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