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The central dogma and cosmological horizons

Journal Article · · Journal of High Energy Physics (Online)
 [1]
  1. University of Pennsylvania, Philadelphia, PA (United States); Univ. of Pennsylvania, Philadelphia, PA (United States)
The central dogma of black hole physics – which says that from the outside a black hole can be described in terms of a quantum system with exp(Area/4GN) states evolving unitarily – has recently been supported by computations indicating that the interior of the black hole is encoded in the Hawking radiation of the exterior. In this paper, we probe whether such a dogma for cosmological horizons has any support from similar computations. The fact that the de Sitter bifurcation surface is a minimax surface (instead of a maximin surface) causes problems with this interpretation when trying to import calculations analogous to the AdS case. This suggests anchoring extremal surfaces to the horizon itself, where we formulate a two-sided extremization prescription and find answers consistent with general expectations for a quantum theory of de Sitter space: vanishing total entropy, an entropy of A/4GN when restricting to a single static patch, an entropy of a subregion of the horizon which grows as the region size grows until an island-like transition at half the horizon size when the entanglement wedge becomes the entire static patch interior, and a de Sitter version of the Hartman-Maldacena transition.
Research Organization:
University of Pennsylvania, Philadelphia, PA (United States)
Sponsoring Organization:
Simons Foundation; USDOE Office of Science (SC)
Grant/Contract Number:
SC0020360
OSTI ID:
1976435
Journal Information:
Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 1 Vol. 2022; ISSN 1029-8479
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (2)

Logarithmic Corrections, Entanglement Entropy, and UV Cutoffs in de Sitter Spacetime text January 2022
On the Spread of Entanglement at Finite Cutoff text January 2022

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