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题名: Dynamical mass generation in QED(3) beyond the instantaneous approximation
作者: Xiao, HX ;  Li, JF ;  Wei, W ;  Yin, PL ;  Zong, HS
刊名: CHINESE PHYSICS C
出版日期: 2017
卷号: 41, 期号:7, 页码:73102
关键词: QED(3) ;  dynamical gap generation ;  critical temperature ;  N-f-T phase diagram
学科分类: Physics
DOI: http://dx.doi.org/10.1088/1674-1137/41/7/073102
通讯作者: Zong, HS (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China. ;  Zong, HS (reprint author), Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China. ;  Zong, HS (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
文章类型: Article
英文摘要: In this paper, we investigate dynamical mass generation in (2+1)-dimensional quantum electrodynamics at finite temperature. Many studies are carried out within the instantaneous-exchange approximation, which ignores all but the zero-frequency component of the boson propagator and fermion self-energy function. We extend these studies by taking the retardation effects into consideration. In this paper, we get the explicit frequency n and momentum p dependence of the fermion self-energy function and identify the critical temperature for different fermion flavors in the chiral limit. Also, the phase diagram for spontaneous symmetry breaking in the theory is presented in T-c-N-f space. The results show that the chiral condensate is just one-tenth of the scale of previous results, and the chiral symmetry is restored at a smaller critical temperature.
类目[WOS]: Physics, Nuclear ;  Physics, Particles & Fields
关键词[WOS]: DYSON-SCHWINGER EQUATIONS ;  FINITE-TEMPERATURE ;  GAUGE-FIELDS ;  QED3 ;  QCD ;  SUPERCONDUCTIVITY ;  PHYSICS ;  SUSCEPTIBILITIES ;  BEHAVIOR ;  FERMIONS
项目资助者: National Natural Science Foundation of China [11475085, 11535005, 11690030] ;  Natural Science Foundation of Jiangsu Province [BK20130387] ;  Jiangsu Planned Projects for Postdoctoral Research Funds [1501035B]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/22020
Appears in Collections:理论物理所2017年知识产出_期刊论文

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Recommended Citation:
Xiao, HX,Li, JF,Wei, W,et al. Dynamical mass generation in QED(3) beyond the instantaneous approximation[J]. CHINESE PHYSICS C,2017,41(7):73102.
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