Results 11 to 20 of about 161,407 (287)
Renormalized functional renormalization group [PDF]
We construct a new version of the effective average action together with its flow equation. The construction entails in particular the consistency of fluctuation field and background field equations of motion, even for finite renormalization group scales.
Stefan Lippoldt
doaj +3 more sources
The analytic renormalization group
Finite temperature Euclidean two-point functions in quantum mechanics or quantum field theory are characterized by a discrete set of Fourier coefficients Gk, k∈Z, associated with the Matsubara frequencies νk=2πk/β.
Frank Ferrari
doaj +5 more sources
Holographic Renormalization Group [PDF]
The holographic renormalization group (RG) is reviewed in a self-contained manner. The holographic RG is based on the idea that the radial coordinate of a space-time with asymptotically AdS geometry can be identified with the RG flow parameter of the ...
Fukuma, Masafumi+2 more
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Renormalization group and divergences [PDF]
Application of asymptotic freedom to the ultraviolet stability in Euclidean quantum field theories is revisited and illustrated through the hierarchical model making also use of a few technical developments that followed the original works of Wilson on ...
Gallavotti, Giovanni
core +5 more sources
Gutzwiller Renormalization Group
We develop a variational scheme called "Gutzwiller renormalization group" (GRG), which enables us to calculate the ground state of Anderson impurity models (AIM) with arbitrary numerical precision.
Deng, Xiaoyu+5 more
core +5 more sources
Renormalization Group Flow in CDT [PDF]
We perform a first investigation of the coupling constant flow of the nonperturbative lattice model of four-dimensional quantum gravity given in terms of Causal Dynamical Triangulations (CDT).
Ambjorn, J.+4 more
core +10 more sources
AbstractAn especially intractable breed of problems in physics involves those with very many or an infinite number of degrees of freedom and in addition involve “renormalization.” Renormalization is explained as the existence of very many length or energy scales of importance in the physics of the problem. The renormalization group approach is a way of
Kenneth G. Wilson
openalex +3 more sources
Global renormalization group [PDF]
LaTex, 39 pages. Final version, to appear in Phys.
Alexandre J., Branchina V., Polonyi J.
openaire +7 more sources
On the holographic renormalization group [PDF]
14 pages, no ...
Erik Verlinde+4 more
openaire +6 more sources
Renormalization group and universality [PDF]
It is argued that universality is severely limited for models with multiple fixed points. As a demonstration the renormalization group equations are presented for the potential and the wave function renormalization constants in the $O(N)$ scalar field theory.
Janos Polonyi, Sen-Ben Liao
openaire +4 more sources