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    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:[物理研究所] 期刊論文

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