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hep-th2026
Anti-scrambling and euclidean folds from observer correlators in de Sitter space
Daniel Harlow, Ying Zhao
The de Sitter horizon behaves in a qualitatively different way from a black hole horizon, which poses a challenge to any attempt to develop a fundamental quantum description of de…
hep-th2026
Observers, -parameters, and the Hartle-Hawking state
Daniel Harlow
In this paper we extend recent ideas about observers and closed universes to theories where observers can be fluctuated into existence in the Hartle-Hawking state. This introduces…