9 papers
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…
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…
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…
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…
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…
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,…