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arXiv 0805.3571gr-qc
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黑洞熵对宇宙加速的贡献

Contribution Of Blackhole Entropy Towards Acceleration Of The Universe

A. M. Haruar Rashid, A. L. Choudhury

摘要:

在最近的一个模型中,Choudhury提出,坍缩的物质产生绝热压力,可以用来解释在某些近似下物理宇宙的加速。在这项工作中,我们通过黑洞的熵产生的核心压力。我们忽略了在这个过程中黑洞内能的变化。然后,我们计算了哈勃参数和减速参数。我们已经证明了哈勃参数是正的,减速参数随时间波动,这意味着在一定时期内宇宙加速和减速。

英文摘要:

In a recent model Choudhury proposed that a collapsing matter generates an adiabatic pressure which can be used to explain the acceleration of the physical universe under certain approximation. In this work we superimpose the core pressure generated through the entropy of the blackhole. We have ignored the blackhole internal energy change during this process. We have then calculated both Hubble parameter and the deacceleration parameter. We have shown that the Hubble parameter is positive and the deacceleration parameter fluctuates with time, meaning for certain period the universe accelerates and decelerates for other time.

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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