An Invitation to Celestial Amplitudes

Add to your list(s) Download to your calendar using vCal

• Sabrina Pasterski, Princeton University
• Wednesday 03 November 2021, 15:30-16:30
• ONLINE - Details to be sent by email.

If you have a question about this talk, please contact bc335.

Celestial Holography proposes a duality between gravitational scattering in spacetimes with vanishing cosmological constant and a conformal field theory living on the celestial sphere. It maps four-dimensional scattering matrix elements to objects that transform as two-dimensional conformal correlators, termed Celestial Amplitudes. This map possesses a number of surprising features. It emphasizes infinite-dimensional symmetry enhancements, which are typically hidden in infrared factorization theorems for amplitudes; reorganizes collinear limits as conformal field theory operator product expansions, and mixes ultraviolet and infrared behavior in a manner that may allow us to make general claims about scattering not obvious from perturbation theory.

We will start by reviewing how infrared physics points to symmetry enhancements, show why this footing leads us to Celestial Holography, and then review recent progress in constructing the holographic dictionary.

This talk is part of the Theoretical Physics Colloquium series.

This talk is included in these lists:

• All CMS events
• All Talks (aka the CURE list)
• CMS Events
• Cambridge Astronomy Talks
• Cosmology lists
• Cosmology, Astrophysics and General Relativity
• DAMTP info aggregator
• HEP web page aggregator
• Interested Talks
• Kavli Institute for Cosmology Talk Lists
• ONLINE - Details to be sent by email
• Priscilla
• Theoretical Physics Colloquium
• bld31

Note that ex-directory lists are not shown.