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arXiv · 2105.00300

Action principle selection of regular black holes

Breno L. Giacchini·Tibério de Paula Netto·Leonardo Modesto
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Abstract

We elaborate on the role of higher-derivative curvature invariants as a quantum selection mechanism of regular spacetimes in the framework of the Lorentzian path integral approach to quantum gravity. We show that for a large class of black hole metrics prominently regular there are higher-derivative curvature invariants which are singular. If such terms are included in the action, according to the finite action principle applied to a higher-derivative gravity model, not only singular spacetimes but also some of the regular ones do not seem to contribute to the path integral.

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Breno L. Giacchini, Tibério de Paula Netto, Leonardo Modesto. 2021-05-01. Action principle selection of regular black holes. https://doi.org/10.1103/physrevd.104.084072

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