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arXiv 2201.09715gr-qcastro-ph.CO
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反德西特黑洞的全息暗能量

Holographic Dark Energy from the Anti-de Sitter Black Hole

Ratchaphat Nakarachinda, Chakrit Pongkitivanichkul, Daris Samart, Lunchakorn Tannukij, Pitayuth Wongjun

摘要:

反德西特(AdS)黑洞在全息原理中起着重要的作用。在这项研究中,能量上限对应于史瓦西黑洞的质量修改为AdS黑洞。通过紫外截止点和红外截止点之间的对应关系,由黑洞的负宇宙学常数可以得到全息暗能量能量密度中的常数项。有趣的是,提出的暗能量模型可以在不违反因果关系的情况下驱动宇宙的后期膨胀。宇宙演化的研究选择哈勃和粒子视界作为红外长度尺度。结果表明,在这两种情况下,都可以得到后期的加速膨胀。这一结果可能揭示宇宙学背景下AdS黑洞和de Sitter(dS)时空之间的联系。

英文摘要:

The anti-de Sitter (AdS) black hole plays an important role in the holographic principle. In this study, the upper bound in energy corresponding to the mass of the Schwarzschild black hole is modified to be that of the AdS black hole. Via the correspondence between the ultraviolet (UV) and infrared (IR) cutoffs, the constant term in the energy density of the holographic dark energy (HDE) can be obtained from the negative cosmological constant from the black hole. Interestingly, the proposed dark energy model could drive the late-time expansion of the Universe without the causality violation. The cosmic evolution is investigated by choosing the Hubble and particle horizons as the IR length scales. It is found that the accelerated expansion at late time can be obtained for both cases. This result may shed light on the connection between the AdS black hole and the de Sitter (dS) spacetime in the context of cosmology.

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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