2020/09/30 by Xin An, Gökçe Başar, Gokce Basar +2 · 41 citations
Mathematics · Physics and Astronomy · #Anisotropy #Bispectrum #Computer science #Context (archaeology) #Cumulant #Diagrammatic reasoning #Gaussian #High-Energy Particle Collisions Research #Mathematical analysis #Mathematics #Multiplicative function #Multiplicative noise #Non-Gaussianity #Nonlinear system #Physics #Quantum mechanics #Spectral density #Statistical Mechanics and Entropy #Statistical physics #Theoretical and Computational Physics #cond-mat.stat-mech #hep-ph #hep-th #nucl-th
paper · pdf · doi:10.1103/physrevlett.127.072301
published in Physical Review Letters 127(7), 072301 (American Physical Society) · 8 pages, 3 figures. Clarifications and Supplementary Material with a numerical simulation added. Version accepted by PRL
arxiv created 2021/08/13 · openalex publication_date 2021/08/13 · arxiv updated 2021/09/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In the context of the search for the QCD critical point using non-Gaussian fluctuations, we obtain the evolution equations for non-Gaussian cumulants to the leading order of the systematic expansion in the magnitude of thermal fluctuations. We develop a diagrammatic technique in which the leading order contributions are given by tree diagrams. We introduce a Wigner transform for multipoint correlators and derive the evolution equations for three- and four-point Wigner functions for the problem of nonlinear stochastic diffusion with multiplicative noise.