Physics

IAS Amplitudes Group Meeting

May 28, 2024 | 2:30pm - 4:00pm

Abstract: Scattering amplitudes can be used to probe the all-orders structure of gauge theories. Particularly rich is the non-planar sector, where physical phenomena such as quadrupole radiation and multi-reggeon interactions appear. In this talk I...

IAS High Energy Theory Seminar

May 24, 2024 | 11:00am - 12:15pm

Abstract: I will discuss two methods for diagnosing ’t Hooft anomalies of internal symmetries in 2+1d lattice systems. Anomalous symmetries of this kind arise naturally at the boundary of 3+1D symmetry-protected topological phases, and are known to...

Abstract: Is it possible to read off the quantum gravity dual of a CFT directly from its operator algebra? In this talk, I will present a step-by-step recipe for building up 3D quantum spacetimes dual to 2D CFTs, synthesizing results and techniques...

IAS Physics Group Meeting

May 22, 2024 | 11:00am - 12:15pm

Abstract: In this talk, we'll review the bootstrap method that uses unitarity and causality (analyticity + crossing) to constrain low-energy effective field theories (EFTs), especially those including gravitational couplings. This method allows us...

PU High Energy Theory Seminar

May 13, 2024 | 2:30pm - 3:30pm

Abstract: We study the operator algebra of extended conformal defects in more than two spacetime dimensions. Such algebra structure encodes the combined effect of multiple impurities on physical observables at long distances as well as the...

IAS High Energy Theory Seminar

May 10, 2024 | 11:00am - 12:15pm

Abstract: The Gaiotto-Moore-Witten "Algebra of the Infrared" allows one to construct the category of supersymmetric boundary conditions for a wide class of massive N=(2,2) QFTs in two dimensions. In particular, it applies to N=(2,2) QFTs defined by...