Generic singularity of general relativity and its quantum fate

TL;DR

This paper discusses how quantum gravity could resolve the singularities predicted by classical general relativity, suggesting a quantum bounce replaces the classical singularity, potentially avoiding the breakdown of physical laws.

Contribution

It proposes that quantization of the generic singularity scenario leads to regular quantum evolution, indicating singularities may be avoided in a future quantum theory of gravity.

Findings

Quantum evolution remains regular at classical singularities.

Quantum gravity potentially removes singularities in cosmology and black holes.

Quantum bounce replaces classical singularities.

Abstract

The Belinski-Khalatnikov-Lifshitz scenario concerns the existence of generic singularity of general relativity. At the singularity, there is a breakdown of all known laws of physics. Quantization of this scenario leads, however, to regular quantum evolution. The singularity is avoided by a quantum bounce. It is fairly probable that quantum general relativity, to be constructed, would be free from singularities. Thus, it could be used to address issues such as the quantum fates of cosmological and black holes singularities.