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arXiv 2201.10381gr-qcastro-ph.HEhep-th
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黑洞和Buchdahl星的最大力

Maximum Force for Black Holes and Buchdahl Stars

Naresh Dadhich

摘要:

黑洞和Buchdahl星分别用$Φ(R)=1/2, 4/9$标识,其中$g_{tt}=1-2Φ(R)$为球对称静态度规.本文研究了当一个参与物体带电和/或旋转,而另一个是中性不旋转时,黑洞和Buchdahl星的最大力.事实证明,两个史瓦西物体之间的最大力是普适的,在通常的四维时空中,根据广义相对论中的基本光速和引力常量给出。一般来说,这个特征唯一地挑选出纯Lovelock引力(只有一个$N$阶项起作用,其中包括线性阶$N=1$中的GR)和维数谱$D=3N+1$,其中$N$是Lovelock多项式作用的次数。

英文摘要:

Black hole and Buchdahl star are identified respectively by $Φ(R)=1/2, 4/9$ where $g_{tt}=1-2Φ(R)$ for a spherically symmetric static metric. We investigate the maximum force for black hole and Buchdahl star when one of the participating objects is charged and/or rotating while the other is neutral and non-rotating. It turns out that the maximum force between two Schwarzschild objects is universal, given in terms of the fundamental constant velocity of light and the gravitational constant in general relativity (GR) in the usual four dimensional spacetime. In general this feature uniquely picks out the pure Lovelock gravity (having only one $N$th order term in action which includes GR in the linear order $N=1$) and the dimensional spectrum, $D=3N+1$, where $N$ is degree of the Lovelock polynomial action.

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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