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    题名: Acausal PGT modes and the nonlinear constraint effect
    作者: Chen,H;Nester,JM;Yo,HJ
    贡献者: 物理研究所
    关键词: POINCARE GAUGE-THEORY;INITIAL-VALUE PROBLEM;FUNDAMENTAL PARTICLES;GENERAL-RELATIVITY;SHOCK-WAVES;GRAVITY;TORSION;LAGRANGIANS;FORMALISM;VACUUM
    日期: 1998
    上传时间: 2010-07-08 14:03:36 (UTC+8)
    出版者: 中央大學
    摘要: The effect of constraints on the initial value and acausal propagation problems in the Poincare Gauge Theory is considered with the aid of the linearized theory and the Hamiltonian analysis. To linear order there are no difficulties, however non-linearities in any extra "if" constraints can cause serious problems involving a change in the number and type of constraints as well as acausal propagation modes. Specific examples are given. Only very special parameter choices are expected to avoid these problems. A similar story is predicted for most other gauge theories of gravity. This type of analysis holds promise as a strong test for alternate gravity theories.
    關聯: ACTA PHYSICA POLONICA B
    显示于类别:[物理研究所] 期刊論文

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