Pseudotensors and quasilocal energy-momentum

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题名:	Pseudotensors and quasilocal energy-momentum
作者:	Chang,CC;Nester,JM;Chen,CM
贡献者:	物理研究所
关键词:	LOCAL ENERGY;GRAVITY THEORIES;GENERAL-RELATIVITY;CONSERVATION-LAWS
日期:	1999
上传时间:	2010-07-08 14:02:46 (UTC+8)
出版者:	中央大學
摘要:	Early energy-momentum investigations for gravitating systems gave reference-frame-dependent pseudotensors; later the quasilocal idea was developed. Quasilocal energy-momentum can be determined by the Hamiltonian boundary term, which also identifies the variables to be held fixed on the boundary. We show that a pseudotensor corresponds to a Hamiltonian boundary term. Hence, they are quasilocal and acceptable; each is the energy-momentum density for a definite physical situation with certain boundary conditions. These conditions are identified for well-known pseudotensors.
關聯:	PHYSICAL REVIEW LETTERS
显示于类别:	[物理研究所] 期刊論文

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