2010/01/31 by Franziska Synatschke, Jens Braun, Andreas Wipf
Physics and Astronomy · #Black Holes and Theoretical Physics #Boson #High-Energy Particle Collisions Research #Mathematical physics #Particle physics #Phase transition #Physics #Quantum Chromodynamics and Particle Interactions #Superpotential #Supersymmetry #Thermodynamics #Yukawa potential #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevd.81.125001
published as Phys.Rev.D81:125001,2010 · 14 pages, 6 figures, typos corrected and some comments added, version to be published in Phys. Rev. D
arxiv created 2010/05/21 · openalex publication_date 2010/06/01 · arxiv updated 2014/11/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Supersymmetric renormalization group flow equations for the effective superpotential of the three-dimensional Wess-Zumino model are derived at zero and non-zero temperature. This model with fermions and bosons interacting via a Yukawa term possesses a supersymmetric analogue of the Wilson-Fisher fixed-point. At zero temperature we determine the phase-transition line in coupling-constant space separating the supersymmetric from the nonsupersymmetric phase. At finite temperature we encounter dimensional reduction from 3 to 2 dimensions in the infrared regime. We determine the finite-temperature phase diagram for the restoration of the global ℤ2-symmetry and show that for temperatures above the ℤ2 phase transition the pressure obeys the Stefan-Boltzmann law of a gas of massless bosons in 2+1 dimensions.