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arXiv 0705.3024gr-qchep-th
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对称性、视界与黑洞熵

Symmetries, Horizons, and Black Hole Entropy

S. Carlip

摘要:

黑洞的行为就像热力学系统,任何引力量子理论的中心任务都是解释这些热性质。黑洞熵的统计力学描述曾经似乎遥不可及,但今天我们却遭遇了财富的尴尬:尽管计算了非常不同的状态,但许多不等价的量子引力方法都得到了相同的结果。这种“普适性”可能反映了视界附近潜在的二维共形对称性,它可以强大到足以控制与理论的其他细节无关的热特性。这幅图提出了一个优雅的描述,将相关的自由度描述为由共形异常引起的对称破缺所产生的类戈德斯通玻色子激发。

英文摘要:

Black holes behave as thermodynamic systems, and a central task of any quantum theory of gravity is to explain these thermal properties. A statistical mechanical description of black hole entropy once seemed remote, but today we suffer an embarrassment of riches: despite counting very different states, many inequivalent approaches to quantum gravity obtain identical results. Such ``universality'' may reflect an underlying two-dimensional conformal symmetry near the horizon, which can be powerful enough to control the thermal characteristics independent of other details of the theory. This picture suggests an elegant description of the relevant degrees of freedom as Goldstone-boson-like excitations arising from symmetry breaking by the conformal anomaly.

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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