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arXiv · 2305.10382

Rotating black holes in semiclassical gravity

Pedro G. S. Fernandes
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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.

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Pedro G. S. Fernandes. 2023-05-17. Rotating black holes in semiclassical gravity. https://doi.org/10.1103/physrevd.108.l061502

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