Quantum Transfiguration of Kruskal Black Holes

TL;DR

This paper introduces a quantum-corrected model of Kruskal black holes using loop quantum gravity, resolving classical singularities and extending the spacetime beyond traditional limits, with implications for quantum gravity theories.

Contribution

It provides a new effective description of Kruskal black holes incorporating loop quantum gravity effects, resolving singularities and extending the spacetime model.

Findings

Singularities are resolved by quantum geometry effects.

The quantum extension of Kruskal spacetime is free of classical limitations.

Comparison with previous models and AdS/CFT expectations is provided.

Abstract

We present a new effective description of macroscopic Kruskal black holes that incorporates corrections due to quantum geometry effects of loop quantum gravity. It encompasses both the `interior' region that contains classical singularities and the `exterior' asymptotic region. Singularities are naturally resolved by the quantum geometry effects of loop quantum gravity, and the resulting quantum extension of the full Kruskal space-time is free of all the known limitations of previous investigations [1-11] of the Schwarzschild interior. We compare and contrast our results with these investigations and also with the expectations based on the AdS/CFT duality [12].