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arXiv 0705.1178hep-thgr-qc
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量子de Sitter空间的全局图像

A global picture of quantum de Sitter space

Steven B. Giddings, Donald Marolf

摘要:

关于德西特背景的微扰引力激发了“永恒德西特空间”中量子动力学的全局图景,“永恒德西特空间”是一种状态理论,它对未来和过去都是渐近的。永恒的德西特物理学是由一个有限维的希尔伯特空间来描述的,在这个空间中,每个状态在完整的德西特群下都是精确不变的。这解决了先前注意到的德西特对称性和有限熵之间的紧张关系。观测,玻尔兹曼大脑的影响,和庞加莱递归进行了简要讨论。

英文摘要:

Perturbative gravity about a de Sitter background motivates a global picture of quantum dynamics in `eternal de Sitter space,' the theory of states which are asymptotically de Sitter to both future and past. Eternal de Sitter physics is described by a finite dimensional Hilbert space in which each state is precisely invariant under the full de Sitter group. This resolves a previously-noted tension between de Sitter symmetry and finite entropy. Observables, implications for Boltzmann brains, and Poincare recurrences are briefly discussed.

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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