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题名: True radiation gauge for gravity
作者: Chen, XS ;  Zhu, BC
刊名: PHYSICAL REVIEW D
出版日期: 2011
卷号: 83, 期号:6, 页码:61501
关键词: RELATIVITY
学科分类: Physics
通讯作者: Chen, XS (reprint author), Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China.
部门归属: [Chen, Xiang-Song; Zhu, Ben-Chao] Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China; [Chen, Xiang-Song] Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Peoples R China; [Chen, Xiang-Song] CAS, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China
英文摘要: Corresponding to the similarity between the Lorentz gauge partial derivative(mu)A(mu) = 0 in electrodynamics and g(mu nu)Gamma(rho)(mu nu) = 0 in gravity, we show that the counterpart of the radiation gauge partial derivative(i)A(i) = 0 is g(ij)Gamma(rho)(ij) = 0, instead of other forms as discussed before. Particularly, 1) at least for a weak field, g(ij)Gamma(rho)(ij) = 0 fixes the gauge completely and picks out exactly the two physical components of the gravitational field; 2) like A(0), the nondynamical components h(0 mu) are solved instantaneously; 3) gravitational radiation is generated by the "transverse" part of the energy-momentum tensor, similar to the transverse current (J) over right arrow (perpendicular to). This "true" radiation gauge g(ij)Gamma(rho)(ij) = 0 is especially pertinent for studying gravitational energy, such as the energy flow in gravitational radiation. It agrees with the transverse-traceless gauge for a pure wave, and reveals remarkably how the transverse-traceless gauge can be adapted in the presence of source.
资助者: National Natural Science Foundation of China [10875082, 11035003]; China Education Department
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000288006000001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14394
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Recommended Citation:
Chen, XS,Zhu, BC. True radiation gauge for gravity[J]. PHYSICAL REVIEW D,2011,83(6):61501.
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