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arXiv 2210.15440gr-qchep-th
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广义相对论1/c展开式的3+1表述

A 3+1 formulation of the 1/c expansion of General Relativity

Mahmut Elbistan, Efe Hamamci, Dieter Van den Bleeken, Utku Zorba

摘要:

将广义相对论扩展到光速的倒数1/c,导致了一种非相对论性的引力理论,它通过包含额外的强引力势来扩展后牛顿理论。这个理论在牛顿-嘉当几何的语言中有一个完全协变的公式,但我们在这里重新讨论它在3+1公式。合适的广义相对论的3+1公式是由Kol和Smolkin(KS)首先描述的,而不是更著名的Arnowitt-Deser-Misner(ADM)形式主义。正如我们所回顾的那样,KS公式与ADM公式是对偶的,因为正切空间和余切空间的作用互换了。在这个3+1公式中,1/c展开可以以更系统和更有效的方式进行,我们使用它来扩展有效拉格朗日的计算,超越以前实现的,并进行一些新的全阶观测。

英文摘要:

Expanding General Relativity in the inverse speed of light, 1/c, leads to a nonrelativistic gravitational theory that extends the Post-Newtonian expansion by the inclusion of additional strong gravitational potentials. This theory has a fully covariant formulation in the language of Newton-Cartan geometry but we revisit it here in a 3+1 formulation. The appropriate 3+1 formulation of General Relativity is one first described by Kol and Smolkin (KS), rather than the better known Arnowitt-Deser-Misner (ADM) formalism. As we review, the KS formulation is dual to the ADM formulation in that the role of tangent and co-tangent spaces get interchanged. In this 3+1 formulation the 1/c expansion can be performed in a more systematic and efficient fashion, something we use to extend the computation of the effective Lagrangian beyond what was previously achieved and to make a number of new all order observations.

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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