Results 1 to 10 of about 162,505 (294)

Gravitational dressing of the renormalization group [PDF]

open access: greenPhysical Review Letters, 1993
We study the gravitational dressing of renormalizable two-dimensional field theories. Our main result is that the one-loop $ $-function is finitely renormalized by the factor ${k+2\over k+1}$, where $k$ is the central charge of the gravitational $SL(2, R)$ current algebra.
Igor R. Klebanov   +2 more
core   +7 more sources

Renormalized functional renormalization group [PDF]

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

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 the renormalization group.
Gallavotti, Giovanni
openaire   +6 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   +5 more sources

Gutzwiller renormalization group

open access: yesPhysical Review B, 2016
5 pages, 3 ...
Lanatà, Nicola   +5 more
openaire   +6 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

Renormalization group methods

open access: bronzeAdvances in Mathematics, 1975
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

Renormalization group flow in CDT [PDF]

open access: yesClassical and Quantum Gravity, 2014
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). After explaining how standard concepts of lattice field theory can be adapted to the case of this background-independent theory, we define a notion of "lines of ...
Jan Ambjørn   +8 more
openaire   +10 more sources

Wilsonian renormalization group versus subtractive renormalization in effective field theories for nucleon–nucleon scattering

open access: yesNuclear Physics B, 2017
We compare the subtractive renormalization and the Wilsonian renormalization group approaches in the context of an effective field theory for the two-nucleon system. Based on an exactly solvable model of contact interactions, we observe that the standard
Evgeny Epelbaum   +2 more
doaj   +4 more sources

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