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Photon polarization tensor in a magnetized plasma system

文献类型：期刊论文

作者Chao,Jingyi2; Huang,Mei1
刊名Communications in Theoretical Physics
出版日期2020-10-20
卷号72期号:11页码:8
ISSN号0253-6102
关键词magnetic field thermal field theory photon polarization Landau damping
DOI10.1088/1572-9494/aba25e
通讯作者Chao, Jingyi(jyc.lou@gmail.com)
英文摘要Abstract We investigate the photon polarization tensor at finite temperatures in the presence of a static and homogeneous external magnetic field. In our scheme, the summing of the Matsubara frequency is performed after Poisson resummation, which is easily completed and converges quickly. Moreover, the behaviors of finite Landau levels are presented explicitly. It shows a convergence while summing infinite Landau levels. Consequently, there is no necessity to truncate the Landau level in a numerical estimation. At zero temperature, the lowest Landau level (LLL) approximation is analytically satisfied for the vacuum photon polarization tensor. However, we examine that the LLL approximation is not enough for the thermal polarization tensor. The thermal tensor obtains non-trivial contributions from the finite-n Landau levels. And, photon spectra gains a large imaginary contribution in thermal medium, which is the so-called Landau damping. Finally, it is argued that the summation of Matsubara frequency is not commuted with Landau level ones, such conjecture is excluded in our calculations.
WOS关键词SYMMETRY-BREAKING ; FIELD ; CATALYSIS
资助项目Major State Basic Research Development Program in China[2015CB856903] ; NSFC[11725523] ; NSFC[11735007] ; NSFC[11261130311] ; NSFC (DFG)[11725523] ; NSFC (DFG)[11735007] ; NSFC (DFG)[11261130311] ; NSFC (DFG)[CRC 110]
WOS研究方向Physics
语种英语
出版者IOP Publishing
WOS记录号IOP:0253-6102-72-11-ABA25E
资助机构Major State Basic Research Development Program in China ; NSFC ; NSFC (DFG)
源URL[http://119.78.100.186/handle/113462/137264]  
专题中国科学院近代物理研究所
作者单位1.School of Physics Sciences, University of Chinese Academy of Sciences, Beijing 100039, China
2.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
推荐引用方式
GB/T 7714		 Chao,Jingyi,Huang,Mei. Photon polarization tensor in a magnetized plasma system[J]. Communications in Theoretical Physics,2020,72(11):8.
APA Chao,Jingyi,&Huang,Mei.(2020).Photon polarization tensor in a magnetized plasma system.Communications in Theoretical Physics,72(11),8.
MLA Chao,Jingyi,et al."Photon polarization tensor in a magnetized plasma system".Communications in Theoretical Physics 72.11(2020):8.

入库方式： OAI收割

来源：近代物理研究所

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