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arXiv 1306.2138hep-th
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协变引力理论中的准定域守恒荷

Quasi-Local Conserved Charges in Covariant Theory of Gravity

Wontae Kim, Shailesh Kulkarni, Sang-Heon Yi

摘要:

在任何一般的协变引力理论中,我们证明了线性化的渐近守恒流与通过同守恒流的非线性完备化之间的关系。我们制定的守恒电荷的拉格朗日描述的基础上,所以完全协变。利用这一结果,我们给出了在任意高阶导数引力场中定义准局域守恒荷的一种方法。作为该方法的应用,我们证明了黑洞沿径向的角动量不变性,并在渐近AdS空间上更有效地再现了线性化势.

英文摘要:

In any generally covariant theory of gravity, we show the relationship between the linearized asymptotically conserved current and its non-linear completion through the identically conserved current. Our formulation for conserved charges is based on the Lagrangian description, and so completely covariant. By using this result, we give a prescription to define quasi-local conserved charges in any higher derivative gravity. As applications of our approach, we demonstrate the angular momentum invariance along the radial direction of black holes and reproduce more efficiently the linearized potential on the asymptotic AdS space.

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