2020/06/30 by Andrew Connelly, Gregory Johnson, Fabian Rennecke +2 · 1 citation
Mathematics · Physics and Astronomy · #Artificial intelligence #Black Holes and Theoretical Physics #Combinatorics #Computer science #Enhanced Data Rates for GSM Evolution #Field (mathematics) #Mathematical analysis #Mathematical physics #Mathematics #Order (exchange) #Particle physics theoretical and experimental studies #Physics #Pure mathematics #Quantum Chromodynamics and Particle Interactions #Range (aeronautics) #Renormalization group #Singularity #cond-mat.stat-mech #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevlett.125.191602
published as Phys. Rev. Lett. 125, 191602 (2020) · 6 pages, 2 figures; version accepted for publication in PRL
openalex created_date 2020/06/25 · arxiv created 2020/09/28 · openalex publication_date 2020/11/03 · arxiv updated 2020/11/11 · openalex updated_date 2026/08/05
We determine a previously unknown universal quantity, the location of the Yang-Lee edge singularity for the O(N) theories in a wide range of N and various dimensions. At large N, we reproduce the N→∞ analytical result on the location of the singularity and, additionally, we obtain the mean-field result for the location in d=4 dimensions. In order to capture the nonperturbative physics for arbitrary N, d and complex-valued external fields, we use the functional renormalization group approach.