The central dogma and cosmological horizons
Edgar Shaghoulian

TL;DR
This paper investigates whether the black hole central dogma extends to cosmological horizons, proposing a new extremization approach that aligns with expected quantum properties of de Sitter space.
Contribution
It introduces a two-sided extremization prescription for cosmological horizons, providing a framework consistent with quantum de Sitter space properties and extending black hole holographic ideas.
Findings
Vanishing total entropy for de Sitter space
Entropy of a static patch matches A/4G_N
Island transition occurs at half the horizon size
Abstract
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 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…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
