Physics

Abstract: On general grounds one expects that global symmetries are absent in quantum gravity. We discuss some aspects of this issue, focusing on the recently proposed Swampland Cobordism Conjecture, and related conjectures connected with...

Abstract: In this talk, I hope to describe elements of proving a certain stable singularity formation result for the Einstein--Euler system which is the topic of work in progress with Jonathan Luk. I will first describe some of the motivating...

Abstract: The appearance of chiral symmetry from lattice fermions has been a non-trivial issue over many years. We apply the idea of "emanant chiral symmetry" by Seiberg and Shao to study the "emanant chiral supersymmetry" on the 1+1 dimensional...

Abstract: In this talk, we will discuss recent advances in realizing programmable quantum systems using neutral atom arrays excited into Rydberg states. These systems allow control over several hundred qubits in two dimensions and the exploration of...

Abstract: There is a surprising parallel between infinite temperature DSSYK and large N QCD which I will explain. The parallel may have much to tell us about the conjectured duality between DSSYK and JT de Sitter space. 

Abstract: We discuss the role of non-invertible symmetries in RG flows between Virasoro minimal models. They give infinitely many new constraints by generalizing the notion of anomaly matching to non-invertible symmetries, leading to the predictions...

Abstract: I will review a series of results regarding the extremal limit of generic black holes in both Einstein and Einstein-Maxwell theory. We will see that in AdS, at low temperatures, large tidal forces arise at the horizon. These tidal forces...

Abstract: I will describe the relationship between the Schur indices of 4d N=2 SQFTs of class S and the quantization of Chern-Simons theory with complex gauge group.

Abstract: Celebrating a hundred years of quantum mechanics, the United Nations has declared 2025 the International Year of Quantum Science and Technology. This is not only an occasion to step back and marvel at the progress, it also raises the...