Results 11 to 20 of about 12,765,544 (342)

Renormalization group in super-renormalizable quantum gravity [PDF]

open access: diamondEuropean Physical Journal C: Particles and Fields, 2018
One of the main advantages of super-renormalizable higher derivative quantum gravity models is the possibility to derive exact beta functions, by making perturbative one-loop calculations.
Leonardo Modesto   +2 more
doaj   +4 more sources

Renormalization group and divergences [PDF]

open access: yesJournal of Statistical Physics, 2014
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

Renormalized functional renormalization group

open access: yesPhysics Letters B, 2018
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

Holographic Renormalization Group [PDF]

open access: yesProgress of Theoretical Physics, 2002
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
core   +8 more sources

From Renormalization Group Flows to Cosmology [PDF]

open access: yesFrontiers in Physics, 2020
According to the asymptotic-safety conjecture, the gravitational renormalization group flow features an ultraviolet-attractive fixed point that makes the theory renormalizable and ultraviolet complete.
Alessia Platania
doaj   +2 more sources

The analytic renormalization group

open access: yesNuclear Physics B, 2016
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   +4 more sources

Gutzwiller Renormalization Group

open access: yesPhysical Review B, 2015
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   +4 more sources

Renormalization group theory of molecular dynamics [PDF]

open access: yesScientific Reports, 2021
Large scale computation by molecular dynamics (MD) method is often challenging or even impractical due to its computational cost, in spite of its wide applications in a variety of fields.
Daiji Ichishima, Yuya Matsumura
doaj   +2 more sources

Quark Confinement and the Renormalization Group [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2010
Recent approaches to quark confinement are reviewed, with an emphasis on their connection to renormalization group methods. Basic concepts related to confinement are introduced: the string tension, Wilson loops and Polyakov lines, string breaking, string
Migdal A. A.   +2 more
core   +4 more sources

Is Deep Learning a Renormalization Group Flow?

open access: yesIEEE Access, 2020
Although there has been a rapid development of practical applications, theoretical explanations of deep learning are in their infancy. Deep learning performs a sophisticated coarse graining.
Ellen De Mello Koch   +2 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy