Events Daily

Monday, October 2, 2023
      

Perturbation theory for large-scale structure with dispersion and higher cumulants
Roman Scoccimarro, New York University
Event Type: CCPP Brown Bag
Time: 12:30 PM - 1:30 PM
Location: 726 Broadway, 940, CCPP Seminar

Link to the Event Video


Aspects of self-duality symmetries: holography and anomalies
Andrea Antinucci, SISSA
Event Type: Informal HEP Talk
Time: 2:00 PM - 3:15 PM
Location: 726 Broadway, 940, CCPP Seminar
Abstract: Certain Quantum Field Theories exhibit self-dualities: the same physics has two mutually non-local descriptions which are nevertheless very similar, with the difference lying only in the values of certain parameters and the global structure. Well-known examples include N=4 SYM in four dimensions and the Ising CFT in two dimensions. In certain situations, self-duality can be turned into an actual symmetry of a physical theory, often at the cost of rendering it non-invertible. In this talk, I will describe various aspects of these non-invertible self-duality symmetries. Specifically, I will explain how they are captured by the holographic dual description when one exists, and what the dynamical implications of the symmetry are. As a result of the analysis, it becomes evident that non-invertibility is more than just a subtle detail; it can sometimes be viewed as an anomaly with dramatic consequences for any symmetry-preserving RG flow.

Link to the Event Video


Zare
Event Type: HEP Discussion Sessions
Time: 2:00 PM - 4:00 PM
Location: 726 Broadway, 902, Lg Conf