
TL;DR
This paper explores the geometric properties of geon black holes, constructed as quotients of stationary black holes, and examines how Hawking-Unruh radiation reveals information about regions behind the horizons.
Contribution
It introduces the construction of geon black holes via quotients and analyzes how quantum correlations in Hawking-Unruh radiation reflect hidden geometric features.
Findings
Correlations in Hawking-Unruh effect reveal features behind horizons.
Geon black holes are constructed as quotients of stationary black holes.
Quantum effects encode information about classically hidden regions.
Abstract
Black hole spacetimes that are topological geons in the sense of Sorkin can be constructed by taking a quotient of a stationary black hole that has a bifurcate Killing horizon. We discuss the geometric properties of these geon black holes and the Hawking-Unruh effect on them. We in particular show how correlations in the Hawking-Unruh effect reveal to an exterior observer features of the geometry that are classically confined to the regions behind the horizons.
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