Holographic description of AdS cosmologies
Holographic description of AdS cosmologies
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DOI：
10.1088/1126-6708/2005/04/005
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发表时间：
2005-03
影响因子：
5.4
通讯作者：
T. Hertog;G. Horowitz
中科院分区：
文献类型：
--
作者：
T. Hertog;G. Horowitz
为了深入了解大爆炸的量子本质，我们研究了具有宇宙学奇异性的超引力的渐近反德西特解的对偶场论描述。对偶理论似乎没有稳定的基态。理论的一个正则化导致宇宙学奇点变成了带有标量头发的巨大黑洞。我们解释这些毛茸茸的黑洞在对偶场理论，并用它们来计算有限温度的有效势。在我们对场论演化的研究中，我们没有发现从大坍缩到大爆炸的“反弹”的证据。相反，大爆炸似乎是从一般的平衡量子引力态的一个罕见的波动。
To gain insight in the quantum nature of the big bang, we study the dual field theory description of asymptotically anti-de Sitter solutions of supergravity that have cosmological singularities. The dual theories do not appear to have a stable ground state. One regularization of the theory causes the cosmological singularities in the bulk to turn into giant black holes with scalar hair. We interpret these hairy black holes in the dual field theory and use them to compute a finite temperature effective potential. In our study of the field theory evolution, we find no evidence for a ``bounce from a big crunch to a big bang. Instead, it appears that the big bang is a rare fluctuation from a generic equilibrium quantum gravity state.