Photon polarization tensor in a magnetized plasma system

doi:10.1088/1572-9494/aba25e

	Photon polarization tensor in a magnetized plasma system
	Chao,Jingyi 2; Huang,Mei 1
刊名	Communications in Theoretical Physics
	2020-10-20
卷号	72 期号:11 页码:8
关键词	magnetic field thermal field theory photon polarization Landau damping
ISSN号	0253-6102
DOI	10.1088/1572-9494/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.
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关键词	SYMMETRY-BREAKING ; FIELD ; CATALYSIS
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)
内容类型	期刊论文
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.