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arXiv 2007.15672hep-thgr-qc
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多齐次时空中的BMS荷

BMS charges in polyhomogeneous spacetimes

Mahdi Godazgar, George Long

摘要:

本文对一类具有有限剪切的多齐次渐近平坦时空的渐近电荷进行了分类,推广了最近关于光滑渐近平坦时空的结果。多齐次时空(英语:Polyhomogeneous spacetime)是一种形式上相容的时空,不满足众所周知的剥离性质。因此,与光滑类相比,它们构成了一个更物理的渐近平坦时空类。特别是,我们建立了广义保守的非线性纽曼-彭罗斯收费,已知存在这样的时空是一个子集的渐近BMS收费。

英文摘要:

We classify the asymptotic charges of a class of polyhomogeneous asymptotically-flat spacetimes with finite shear, generalising recent results on smooth asymptotically-flat spacetimes. Polyhomogenous spacetimes are a formally consistent class of spacetimes that do not satisfy the well-known peeling property. As such, they constitute a more physical class of asymptotically-flat spacetimes compared to the smooth class. In particular, we establish that the generalised conserved non-linear Newman-Penrose charges that are known to exist for such spacetimes are a subset of asymptotic BMS charges.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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