Pseudotensors and quasilocal energy-momentum

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/39033

Title:	Pseudotensors and quasilocal energy-momentum
Authors:	Chang,CC;Nester,JM;Chen,CM
Contributors:	物理研究所
Keywords:	LOCAL ENERGY;GRAVITY THEORIES;GENERAL-RELATIVITY;CONSERVATION-LAWS
Date:	1999
Issue Date:	2010-07-08 14:02:46 (UTC+8)
Publisher:	中央大學
Abstract:	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.
Relation:	PHYSICAL REVIEW LETTERS
Appears in Collections:	[Graduate Institute of Physics] journal & Dissertation

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