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PIRSA:22060055

Video URL

https://pirsa.org/22060055

Is singularity resolution trivial?

Jia, D. (2022). Is singularity resolution trivial?. Perimeter Institute for Theoretical Physics. https://pirsa.org/22060055

Ding Jia Toward a theory of everything

Talk numberPIRSA:22060055
DOI10.48660/22060055
Source RepositoryPIRSA
Collection
Talk Type Conference
Subject

Abstract

Many non-trivial ideas have been proposed to resolve singularities in quantum gravity. In this talk I argue that singularity resolution can be trivial in gravitational path integrals, because geodesically incomplete singular spacetimes are usually not included in the sum. For theories where this holds, there is no need to develop non-trivial ideas on singularity resolution. Instead, efforts should better be directed to understand tunneling processes and complex-valued spacetimes.