The functional renormalization group and O(4) scaling [PDF]
The European Physical Journal C, 2010 The critical behavior of the chiral quark-meson model is studied within the Functional Renormalization Group (FRG). We derive the flow equation for the scale dependent thermodynamic potential at finite temperature and density in the presence of a symmetry-breaking external field. Within this scheme, the critical scaling behavior of the order parameter,
B. Stokić +2 more
openaire +4 more sources
A functional perspective on emergent supersymmetry
Journal of High Energy Physics, 2017 We investigate the emergence of N $$ \mathcal{N} $$ = 1 supersymmetry in the long-range behavior of three-dimensional parity-symmetric Yukawa systems. We discuss a renormalization approach that manifestly preserves supersymmetry whenever such symmetry is
Holger Gies +3 more
doaj +1 more source
Multi‐Slit Diffraction in Scaled Space‐Time
Natural Sciences, EarlyView.A space‐time scaling is used to transform quantum wave packets describing free particle motion to packets moving in an effective harmonic oscillator potential that confines and directs the wave fronts along the classical phase space of the oscillator. The transformation is applied to multi‐slit diffraction and shown to characterize diffraction features
James M. Feagin
wiley +1 more source
Two-loop functional renormalization group theory of the depinning transition [PDF]
, 2002 Pierre Le Doussal +2 more
openalex +3 more sources
Local renormalization group functions from quantum renormalization group and holographic bulk locality [PDF]
arXiv, 2015 The bulk locality in the constructive holographic renormalization group requires miraculous cancellations among various local renormalization group functions. The cancellation is not only from the properties of the spectrum but from more detailed aspects of operator product expansions in relation to conformal anomaly.
arxiv
Nonequilibrium functional renormalization group for interacting quantum systems
, 2007 We propose a nonequilibrium version of functional renormalization within the Keldysh formalism by introducing a complex valued flow parameter in the Fermi or Bose functions of each reservoir.
Herbert Schoeller +4 more
core +1 more source
Functional renormalization group and Kohn–Sham scheme in density functional theory
Physics Letters B, 2018 Deriving accurate energy density functional is one of the central problems in condensed matter physics, nuclear physics, and quantum chemistry. We propose a novel method to deduce the energy density functional by combining the idea of the functional ...
Haozhao Liang, Yifei Niu, Tetsuo Hatsuda
doaj
Beta Functions in the Integral Equation Approach to the Exact Renormalization Group [PDF]
arXiv, 2003 We incorporate running parameters and anomalous dimensions into the framework of the exact renormalization group. We modify the exact renormalization group differential equations for a real scalar field theory, using the anomalous dimensions of the squared mass and the scalar field.
arxiv
Renormalization Group Invariance of the Pole Mass in the Multi-Higgs system [PDF]
, 2017 We have investigated the renormalization group running of the pole mass in the multi-Higgs theory in two different types of the gauge fixing conditions. It turns out that the pole mass when expressed in terms of the Lagrangian parameters, is invariant under the renormalization group with the beta and gamma functions of the symmetric phase.
arxiv +1 more source
Evidence for a novel shift-symmetric universality class from the functional renormalization group [PDF]
Physics Letters B, 2022 Cristobal Laporte +3 more
semanticscholar +1 more source