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arXiv · 0705.1178

A global picture of quantum de Sitter space

Steven B. Giddings·Donald Marolf
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Abstract

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.

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Steven B. Giddings, Donald Marolf. 2007-09-20. A global picture of quantum de Sitter space. https://doi.org/10.1103/physrevd.76.064023

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