Schottky anomaly of deSitter black holes

Jack Dinsmore, Patrick Draper, David Kastor, Yue Qiu, Jennie Traschen

Research output: Contribution to journalArticle

Abstract

The interplay of black hole and cosmological horizons introduces distinctive thermodynamic behavior for deSitter black holes, including well-known upper bounds for the mass and entropy. We point to a new such feature, a Schottky peak in the heat capacity of Schwarzschild-deSitter (SdS) black holes. With this behavior in mind, we explore statistical models for the underlying quantum degrees of freedom of SdS holes. While a simple two-state spin model gives Schottky behavior, in order to capture the non-equilibrium nature of the SdS system we consider a system with a large number of non-interacting spins. We examine to what extent constrained states of this system reproduce the thermodynamic properties of the black hole. We also review results of a recent study of particle production in SdS spacetimes in light of the Schottky anomaly and our spin models.

Original languageEnglish (US)
Article number054001
JournalClassical and Quantum Gravity
Volume37
Issue number5
DOIs
StatePublished - Feb 7 2020

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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