PIRSA:24020045 Scientific Series Quantum Gravity

DOI10.48660/24020045

Series: Quantum Gravity

Ruzziconi, R. (2024). Carrollian amplitudes and their role in flat space holography. Perimeter Institute. https://pirsa.org/24020045

Ruzziconi, Romain. Carrollian amplitudes and their role in flat space holography. Perimeter Institute, Feb. 01, 2024, https://pirsa.org/24020045 

@misc{ pirsa_PIRSA:24020045,
  doi = {10.48660/24020045},
  url = {https://pirsa.org/24020045},
  author = {Ruzziconi, Romain},
  keywords = {Quantum Gravity},
  language = {en},
  title = {Carrollian amplitudes and their role in flat space holography},
  publisher = {Perimeter Institute},
  year = {2024},
  month = {feb},
  note = {PIRSA:24020045 see, \url{https://pirsa.org}}
}

Abstract

Carrollian holography aims to express gravity in asymptotically flat space-time in terms of a dual Carrollian CFT living at null infinity. In this talk, I will review some aspects of Carrollian holography and argue that this approach is naturally related to the AdS/CFT correspondence via a flat limit procedure. I will then introduce the notion of Carrollian amplitude, which allows to encode massless scattering amplitudes into boundary correlators, and explain its connection to celestial amplitudes. Finally, I will present recent results concerning Carrollian OPEs and deduce how soft symmetries act at null infinity.

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