Quantum dynamics corresponding to the chaotic BKL scenario

We quantize the solution to the Belinski- Khalatnikov-Lifshitz (BKL) scenario using the integral quantization method. Quantization smears the gravitational singularity, preventing its localization in the configuration space. The latter is defined in terms of spatial and temporal coordinates, which are treated on the same footing that enables the respective covariance of general relativity. The relative quantum perturbations grow as the system evolves towards the gravitational singularity. The quantum randomness amplifies the deterministic classical chaos of the BKL scenario. Additionally, our results suggest that the generic singularity of general relativity can be avoided at a quantum level, giving support to the expectation that quantum gravity has a good chance of being a regular theory.

Automated summary

We quantize the solution to the BKL scenario using integral quantization method, which smears the gravitational singularity and prevents its localization in the configuration space. The relative quantum perturbations grow as the system evolves towards the gravitational singularity, amplifying the deterministic classical chaos. Our results suggest that the generic singularity of general relativity can be avoided at a quantum level, supporting the expectation of quantum gravity being a regular theory.