10 papers
Regge in Wonderland
Alessio Miscioscia, Dmitrii Pavshinkin, Fedor K. Popov
We study the asymptotic behavior of large-spin operators in conformal field theories by placing the theory on a pp-wave background. In this setting, three-point coefficients involv…
Towers of Operators in CFTs and Convexity Bounds at Large Charge
Fedor K. Popov, Adar Sharon
In arXiv:2406.19441, it was shown that for 3d CFTs with a moduli space along which a symmetry is spontaneously broken, the minimum scaling dimension at large charge scal…
Regge's Inferno
Zohar Komargodski, Alessio Miscioscia, Fedor K. Popov
We study large-spin operators in conformal field theories (CFTs) in spacetime dimensions by placing the theory on appropriate pp-wave backgrounds. We show that these geometri…
Trapping Flux in Metals
Zohar Komargodski, Fedor K. Popov
We report on a new flux quantization phenomenon in metals. We study the response of normal metals to the presence of localized magnetic flux. We find that, due to backreaction effe…
Minimal Models of Entropic Order
Xiaoyang Huang, Zohar Komargodski, Andrew Lucas +2
Due to entropic effects, it is possible that generic high-energy states of a quantum or classical system are ordered. This leads to spontaneous symmetry breaking at arbitrarily hig…
Defect Anomalies, a Spin-Flux Duality, and Boson-Kondo Problems
Zohar Komargodski, Fedor K. Popov, Brandon C. Rayhaun
We show that the infrared phases of certain line defects in 2+1d quantum field theories are determined by anomalies, including anomalies in the space of defect coupling constants,…
Do null defects dream of conformal symmetry?
Rajeev S. Erramilli, Justin Kulp, Fedor K. Popov
We initiate the study of null line defects in Lorentzian conformal field theories in various dimensions. We show that null lines geometrically preserve a larger set of conformal is…
Entropic Order
Yiqiu Han, Xiaoyang Huang, Zohar Komargodski +2
Ordered phases of matter, such as solids, ferromagnets, superfluids, or quantum topological order, typically only exist at low temperatures. Despite this conventional wisdom, we pr…
Temperature-Resistant Order in 2+1 Dimensions
Zohar Komargodski, Fedor K. Popov
High temperatures are typically thought to increase disorder. Here we examine this idea in Quantum Field Theory in 2+1 dimensions. For this sake we explore a novel class of tractab…
On Real Time Dynamics of Large Models
Fedor K. Popov
We analyze the real-time dynamics of the large vector model, focusing on heavy states with energies of the order . In this regime, we demonstrate that interactions become su…