PIRSA:25050013

Video URL

https://pirsa.org/25050013

Carroll limit of gravity and spacelike (Belinski-Khalatnikov-Lifshitz) singularities

Henneaux, M. (2025). Carroll limit of gravity and spacelike (Belinski-Khalatnikov-Lifshitz) singularities. Perimeter Institute for Theoretical Physics. https://pirsa.org/25050013

Henneaux, Marc. Carroll limit of gravity and spacelike (Belinski-Khalatnikov-Lifshitz) singularities. Perimeter Institute for Theoretical Physics, May. 01, 2025, https://pirsa.org/25050013 

          @misc{ scivideos_PIRSA:25050013,
            doi = {10.48660/25050013},
            url = {https://pirsa.org/25050013},
            author = {Henneaux, Marc},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Carroll limit of gravity and spacelike (Belinski-Khalatnikov-Lifshitz) singularities},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2025},
            month = {may},
            note = {PIRSA:25050013 see, \url{https://scivideos.org/pirsa/25050013}}
          }

Marc Henneaux College De France

Talk numberPIRSA:25050013
DOI10.48660/25050013
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

Einstein's theory admits interesting limits with different causal structures obtained by letting the speed of light go to infinity (Galilean or "non-relativistic" limit) or to zero (Carrollian, sometimes called "ultrarelativistic", limit). The Carroll limit turns out to be relevant near spacelike (cosmological) singularities, and particularly so when p-form gauge fields are coupled to gravity as in the context of extended supergravities. The resulting differential equations possess a remarkable interpretation in terms of infinite-dimensional Kac-Moody algebras. The talk will review various aspects of Carroll invariant theories, of the Belinski-Khalatnikov-Lifshitz analysis of spacelike singularities and of the related symmetries.