Nov 22 – 24, 2021
Nordita, Stockholm
Europe/Stockholm timezone

The Price of Curiosity: Information Recovery in de Sitter Space

Nov 23, 2021, 11:15 AM
room 4204 (Nordita, Stockholm)

room 4204

Nordita, Stockholm

Short talk


Watse Sybesma (University of Iceland)


Is it possible for a static patch observer in de Sitter space to recover information that lies beyond their de Sitter horizon by collecting Gibbons-Hawking radiation? (How) will back-reaction interfere with their experiment? In this talk I will discuss insights regarding information recovery in de Sitter space obtained by utilizing the so-called island prescription, which has been used to shed new light on the information paradox for black holes utilizing quantum extremal surfaces. Effects of back-reaction are modeled by studying two-dimensional semi-classical models of de Sitter space. One finds that the observer’s curiosity comes at a price, which turns out to be essential for evading quantum cloning paradoxes. I will also discuss further implications such as a connection to de Sitter holography and scrambling times.

Primary author

Watse Sybesma (University of Iceland)

Presentation materials