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arXiv 2301.08055gr-qc
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Raychaudhuri方程在引力系统中的应用

Application of the Raychaudhuri Equation in Gravitational Systems

Shibendu Gupta Choudhury

摘要:

本文主要研究Raychaudhuri方程在引力物理中两个有趣问题中的应用。这些问题仍然缺乏普遍接受的解释。第一个问题与时空奇点的存在有关。我们的目标是找到可能的逃生路线,从这些有问题的奇点在经典的水平。第二个问题与宇宙的后期加速膨胀有关。在这种情况下,我们的目标是找到一个可能的解释这种现象,而不假设存在任何外来的贡献的应力-能量张量。

英文摘要:

The works reported in this thesis primarily address the application of the Raychaudhuri equation in two intriguing problems in gravitational physics. These problems still lack universally accepted explanations. The first problem is related to the existence of spacetime singularities. We aim to find possible escape routes from these problematic singularities at the classical level. The second problem is associated with the late time accelerated expansion of the Universe. In this context, our goal is to find a possible explanation of this phenomenon without assuming the presence of any exotic contribution to the stress-energy tensor.

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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