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arXiv 0712.0155hep-th
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三维量子引力配分函数

Quantum Gravity Partition Functions in Three Dimensions

Alexander Maloney, Edward Witten

摘要:

我们考虑具有负宇宙学常数的纯三维量子引力。经典几何对配分函数的已知贡献之和可以精确计算,包括量子修正。然而,结果在物理上是不合理的,如果模型确实存在,还有一些额外的贡献。一种可能性是,这个理论可能有长弦和连续谱。另一种可能性是需要包括复杂的几何形状,可能导致全纯因式分解的配分函数。我们分析了对贝肯斯坦-霍金熵的次级修正,并表明这些修正可以在这样一个全纯因式分解的理论中正确地再现。我们还考虑了热气体和黑洞之间的Hawking-Page相变,并证明了它是一个与复温度平面中的零点凝聚有关的李-杨型相变.最后,我们分析了纯三维超引力,得到了类似的结果。

英文摘要:

We consider pure three-dimensional quantum gravity with a negative cosmological constant. The sum of known contributions to the partition function from classical geometries can be computed exactly, including quantum corrections. However, the result is not physically sensible, and if the model does exist, there are some additional contributions. One possibility is that the theory may have long strings and a continuous spectrum. Another possibility is that complex geometries need to be included, possibly leading to a holomorphically factorized partition function. We analyze the subleading corrections to the Bekenstein-Hawking entropy and show that these can be correctly reproduced in such a holomorphically factorized theory. We also consider the Hawking-Page phase transition between a thermal gas and a black hole and show that it is a phase transition of Lee-Yang type, associated with a condensation of zeros in the complex temperature plane. Finally, we analyze pure three-dimensional supergravity, with similar results.

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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