Entropy of causal diamond ensembles

We define a canonical ensemble for a gravitational causal diamond by introducing an artificial York boundary inside the diamond with a fixed induced metric and temperature, and evaluate the partition function using a saddle point approximation. For Einstein gravity with zero cosmological constant th...

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Bibliographic Details
Main Author: Ted Jacobson, Manus R. Visser
Format: Article
Language:English
Published: SciPost 2023-07-01
Series:SciPost Physics
Online Access:https://scipost.org/SciPostPhys.15.1.023