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arXiv · 2105.12737

Shocks and Information Exchange in de Sitter Space

Lars Aalsma·Alex Cole·Edward Morvan·Jan Pieter van der Schaar·Gary Shiu
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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 $t = H^{-1}\log(S_{\rm dS})$. 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.

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Lars Aalsma, Alex Cole, Edward Morvan, Jan Pieter van der Schaar, Gary Shiu. 2021-05-26. Shocks and Information Exchange in de Sitter Space. https://doi.org/10.1007/jhep10(2021)104

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