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题名: True radiation gauge for gravity
作者: Chen, Xiang-Song1, 2, 3; Zhu, Ben-Chao1
刊名: PHYSICAL REVIEW D
出版日期: 2011-03-04
卷号: 83, 期号:6
DOI: 10.1103/PhysRevD.83.061501
文章类型: Article
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.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]: Astronomy & Astrophysics ; Physics
关键词[WOS]: RELATIVITY
收录类别: SCI
语种: 英语
WOS记录号: WOS:000288006000001
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15973
Appears in Collections:暗物质和空间天文实验室_期刊论文

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作者单位: 1.Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China
2.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Peoples R China
3.CAS, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China
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