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arXiv 1302.4407gr-qc
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自引力系统平衡态的热力学是全息的

The thermodynamics of self-gravitating systems in equilibrium is holographic

Ntina Savvidou, C. Anastopoulos

摘要:

我们表明,当我们研究广义相对论与热力学的共存时,一些通常被认为是全息的物理性质和量子引力的领域实际上可以在经典水平上访问。特别是,我们证明了引力系统在平衡态的热力学是完全指定的系统的边界上定义的变量,即边界的几何形状和外在曲率。因此,由于经典引力理论的结构(对称性),信息被非平凡地包含在边界变量中,而没有任何来自量子理论的输入(例如黑洞熵)。

英文摘要:

We show that, when we study the coexistence of general relativity with thermodynamics, some physical properties that are usually thought of as holographic and lying in the domain of quantum gravity can actually be accessed even at the classical level. In particular, we demonstrate that the thermodynamics of gravitating systems in equilibrium is fully specified by variables defined on the system's boundary, namely, the boundary's geometry and extrinsic curvature. Hence, information is non-trivially incorporated in boundary variables because of the structure (the symmetries) of the classical gravity theory, without any input from quantum theory (such as black hole entropy).

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