Shocks and Information Exchange in de Sitter Space

Abstract

We discuss some implications of recent progress in understanding the black hole information paradox for complementarity in de Sitter space. Extending recent work by two of the authors, we describe a bulk procedure that allows information expelled through the cosmological horizon to be received by an antipodal observer. Generically, this information transfer takes a scrambling time $t=H^{-1}\log (S_{\mathrm{dS}})$. We emphasize that this procedure relies crucially on selection of the Bunch-Davies vacuum state, interpreted as the thermofield double state that maximally entangles two antipodal static patches. The procedure also requires the presence of an (entangled) energy reservoir, created by the collection of Hawking modes from the cosmological horizon. We show how this procedure avoids a cloning paradox and comment on its implications.

arXiv comment21 pages + appendix. v2: added references, minor clarifications. v3: matches published version

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Cited by in corpus (5)

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• No Page Curves for the de Sitter Horizon
• Cosmologies, singularities and quantum extremal surfaces
• De Sitter Quantum Breaking, Swampland Conjectures and Thermal Strings
• Swampland de Sitter Conjectures in No-Scale Supergravity Models