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Flat space from the Fringes: An Introduction to Carrollian Holography

  • Vijay Nenmeli

Event description

The AdS/CFT correspondence currently stands unrivalled as our most complete realisation of the holographic principle. Despite its numerous successes, the story is still far from over - intrinsic questions aside, AdS is a very special spacetime, and any holographic implications we could draw may likewise be restricted. The call for a more generic understanding of the holographic principle supplanted by observations that our universe possesses a positive cosmological constant has led to renewed efforts on holography for non-AdS spacetimes, specifically those involving its siblings: dS and Minkowski. In this talk, I will discuss aspects of boundary duals to the latter. Specifically, I will first review relevant properties of asymptotically flat spacetimes. In so doing, it will become clear that putative co-dimension one boundary duals must live atop a strange non-Lorentzian background known as a Carroll structure. With this motivation, I will formally define Carroll structures, remark on their symmetries and construct Carroll covariant theories. I will comment on their properties and tentative holographic interpretations, then conclude with an overview of current questions and future directions.

Flat space from the Fringes: An Introduction to Carrollian Holography


Higgs Centre Seminar Room, JCMB (Find us on campus maps)
The Higgs Centre for Theoretical Physics
School of Physics and Astronomy
James Clerk Maxwell Building, 4305
Peter Guthrie Tait Road

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