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arXiv 1005.4532gr-qc
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关于排斥引力的不变定义

Toward an invariant definition of repulsive gravity

Orlando Luongo, Hernando Quevedo

摘要:

广义相对论中裸奇点的一个显著性质是它们的排斥性质。排斥引力效应通常通过分析在裸奇点有效势中运动的试验粒子的轨迹来研究。然而,该方法依赖于坐标和观察者。我们建议使用的黎曼张量的性质,以建立在一个不变的方式排斥引力起主导作用的地区。特别是,我们表明,在克尔-纽曼奇点及其特殊的子情况下,该方法提供了合理的结果。

英文摘要:

A remarkable property of naked singularities in general relativity is their repulsive nature. The effects generated by repulsive gravity are usually investigated by analyzing the trajectories of test particles which move in the effective potential of a naked singularity. This method is, however, coordinate and observer dependent. We propose to use the properties of the Riemann tensor in order to establish in an invariant manner the regions where repulsive gravity plays a dominant role. In particular, we show that in the case of the Kerr-Newman singularity and its special subcases the method delivers plausible results.

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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