scholarly journals Fixed points and their stability in the functional renormalization group of random field models

2014 ◽  
Vol 2014 (6) ◽  
pp. P06010 ◽  
Author(s):  
Maxime Baczyk ◽  
Gilles Tarjus ◽  
Matthieu Tissier ◽  
Ivan Balog
Keyword(s):  
Renormalization Group ◽  
Random Field ◽  
Fixed Points ◽  
Functional Renormalization Group

scholarly journals Isotropic Lifshitz scaling in four dimensions

2020 ◽  
Vol 17 (04) ◽  
pp. 2050053 ◽  
Author(s):  
Dario Zappalà
Keyword(s):  
Renormalization Group ◽  
Fixed Points ◽  
Critical Dimension ◽  
Two Dimensional ◽  
Continuous Line ◽  
Scalar Theory ◽  
Functional Renormalization Group ◽  
Four Dimensions ◽  
Dimension Formula

The presence of isotropic Lifshitz points for a [Formula: see text]-symmetric scalar theory is investigated with the help of the Functional Renormalization Group. In particular, at the supposed lower critical dimension [Formula: see text], evidence for a continuous line of fixed points is found for the [Formula: see text] theory, and the observed structure presents clear similarities with the properties observed in the two-dimensional Berezinskii–Kosterlitz–Thouless phase.

scholarly journals Nonthermal fixed points and the functional renormalization group

2009 ◽  
Vol 813 (3) ◽  
pp. 383-407 ◽  
Author(s):  
Jürgen Berges ◽  
Gabriele Hoffmeister
Keyword(s):  
Renormalization Group ◽  
Fixed Points ◽  
Functional Renormalization Group
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