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arXiv 1004.0627gr-qc
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Friedmann方程的熵修正

Entropic Corrections to Friedmann Equations

Ahmad Sheykhi

摘要:

最近,Verlinde讨论了重力可以被理解为与物质物体的位置相关的信息的变化所引起的熵力。在Verlinde的论证中,黑洞熵的面积定律起着至关重要的作用。然而,熵-面积关系可以通过包含量子效应来修改,其动机来自环量子引力。本文利用这种修正的熵-面积关系,采用引力可以表现为熵力的观点,导出了对牛顿引力定律和修正的弗里德曼方程的修正。我们的研究进一步支持了测井校正的普遍性,并提供了一个强大的一致性检查Verlinde的模型。

英文摘要:

Recently, Verlinde discussed that gravity can be understood as an entropic force caused by changes in the information associated with the positions of material bodies. In the Verlinde's argument, the area law of the black hole entropy plays a crucial role. However, the entropy-area relation can be modified from the inclusion of quantum effects, motivated from the loop quantum gravity. In this note, by employing this modified entropy-area relation, we derive corrections to Newton's law of gravitation as well as modified Friedman equations by adopting the viewpoint that gravity can be emerged as an entropic force. Our study further supports the universality of the log correction and provides a strong consistency check on Verlinde's model.

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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