Seminar January 28: L. Rastelli

On January 28 we will have a seminar by

Leonardo Rastelli (Stony Brook University)

Title: A CFT distance conjecture

Abstract:
We formulate a series of conjectures relating the geometry of conformal manifolds to the spectrum of local operators in conformal field theories in d > 2 spacetime dimensions. Our central conjecture is that all theories at infinite distance in the Zamolodchikov metric possess an emergent higher-spin symmetry, generated by an infinite tower of currents whose anomalous dimensions vanish exponentially in the distance. In the holographic context our conjectures are related to the Distance Conjecture in the swampland program. We motivate and illustrate these conjectures by surveying the landscape of superconformal field theories in three and four dimensions.

Meeting information:
14th of January at 14:30 Italian Time
Zoom Meeting https://zoom.us/j/19843543

You can watch the recording at
https://pandora.infn.it/public/32a276

Seminar January 14: M. Henneaux

On January 14 we will have a seminar by

Marc Henneaux (ULB & Collège de France)

Title: Asymptotic symmetries of electromagnetism and gravity: a Hamiltonian study

Abstract: The asymptotic symmetries of gravity and electromagnetism are remarkably rich.    The talk will explain the asymptotic structure of these theories in the asymptotically flat case by making central use of the Hamiltonian formalism.  In particular, how the relevant infinite-dimensional asymptotic symmetry groups emerge at spatial infinity will be discussed. Extensions to supergravity will be briefly touched upon.

Meeting information:
14th of January at 14:30 Italian Time
Zoom Meeting https://zoom.us/j/19843543

Slides are available at
https://pandora.infn.it/public/c8b1b7

You can watch the recording at
https://pandora.infn.it/public/06173b