A global picture of quantum de Sitter space
Journal Article
·
· Physical Review. D, Particles Fields
- Department of Physics, University of California, Santa Barbara, California 93106 (United States)
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.
- OSTI ID:
- 21032253
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 6 Vol. 76; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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