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University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Infinite towers of 2d symmetry algebras from Carrollian limit of 3d CFT

Infinite towers of 2d symmetry algebras from Carrollian limit of 3d CFT

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BID - Quantum field theory with boundaries, impurities, and defects

Classical gravity in (3+1)-dimensional asymptotically flat spacetimes (AFS) admits an infinite-dimensional symmetry algebra. This algebra is generated by modes of equal-helicity gravitons transforming in integer highest-weight representations of the Lorentz group and can be related to a w-infinity algebra appearing in 2-dimensional conformal field theory (CFT). I will review these ideas which are central in the quest to formulate a holographic correspondence in asymptotically flat spacetimes. The main goal of the talk will be to explain how these structures appear in a flat-space (or Carrollian) limit of 3d CFTs dual to gravity in 4d AdS. 

This talk is part of the Isaac Newton Institute Seminar Series series.

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