Rotating black holes in semiclassical gravity

Abstract

We present analytic stationary and axially-symmetric black hole solutions to the semiclassical Einstein equations that are sourced by the trace anomaly. We also find that the same spacetime geometry satisfies the field equations of a subset of Horndeski theories featuring a conformally coupled scalar field. We explore various properties of these solutions, and determine the domain of existence of black holes. These black holes display distinctive features, such as non-circularity, a non-spherically symmetric event horizon and violations of the Kerr bound.

arXiv comment5 pages, 2 figures. v2: references added, expanded discussion

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• Kerr-Vaidya type radiating black holes in semi-classical gravity with conformal anomaly
• Properties of general stationary axisymmetric spacetimes: circularity and beyond
• Lensing Stability and Scattering Phenomena in Anisotropic Black Hole Spacetimes in Plasma
• Analytical calculation of Kerr and Kerr-Ads black holes in $f(R)$ theory
• Trace anomaly contributions to semi-classical wormhole geometries