Results 31 to 40 of about 161,256 (270)

Critical phenomena and functional renormalization group

open access: yesHe jishu, 2023
Recent progress in studies on quantum chromodynamics (QCD) phase transition and related critical phenomena within the functional renormalization group (fRG) approach were reviewed, including the nonperturbative critical exponents and baryon number ...
YIN Shi, TAN Yangyang, FU Weijie
doaj   +1 more source

The renormalization group and the diffusion equation [PDF]

open access: yesProgress of Theoretical and Experimental Physics, 2020
Abstract We study the relationship between the renormalization group and the diffusion equation. We consider the exact renormalization group equation for a scalar field that includes an arbitrary cutoff function and an arbitrary quadratic seed action.
Matsumoto, Masami   +2 more
openaire   +4 more sources

EXACT RENORMALIZATION GROUP FOR POINT INTERACTIONS

open access: yesActa Polytechnica, 2014
Renormalization is one of the deepest ideas in physics, yet its exact implementation in any interesting problem is usually very hard. In the present work, following the approach by Glazek and Maslowski in the flat space, we will study the exact ...
Osman Teoman Turgut Teoman Turgut   +1 more
doaj   +1 more source

Renormalization Group evolution from on-shell SMEFT

open access: yesJournal of High Energy Physics, 2021
We describe the on-shell method to derive the Renormalization Group (RG) evolution of Wilson coefficients of high dimensional operators at one loop, which is a necessary part in the on-shell construction of the Standard Model Effective Field Theory ...
Minyuan Jiang, Teng Ma, Jing Shu
doaj   +1 more source

Variational Numerical Renormalization Group: Bridging the gap between NRG and Density Matrix Renormalization Group [PDF]

open access: yes, 2012
The numerical renormalization group (NRG) is rephrased as a variational method with the cost function given by the sum of all the energies of the effective low-energy Hamiltonian. This allows to systematically improve the spectrum obtained by NRG through
Pizorn, Iztok, Verstraete, Frank
core   +2 more sources

General scalar renormalisation group equations at three-loop order

open access: yesJournal of High Energy Physics, 2020
For arbitrary scalar QFTs in four dimensions, renormalisation group equations of quartic and cubic interactions, mass terms, as well as field anomalous dimensions are computed at three-loop order in the MS ¯ $$ \overline{\mathrm{MS}} $$ scheme. Utilising
Tom Steudtner
doaj   +1 more source

Exact renormalization group in Batalin-Vilkovisky theory

open access: yesJournal of High Energy Physics, 2018
In this paper, inspired by the Costello’s seminal work [11], we present a general formulation of exact renormalization group (RG) within the Batalin-Vilkovisky (BV) quantization scheme.
Roberto Zucchini
doaj   +1 more source

The Rapidity Renormalization Group

open access: yesPhysical Review Letters, 2011
We introduce a systematic approach for the resummation of perturbative series which involve large logarithms not only due to large invariant mass ratios but large rapidities as well. Series of this form can appear in a variety of gauge theory observables.
Chiu, Jui-yu   +3 more
openaire   +6 more sources

Renormalization group theory of earthquakes [PDF]

open access: yesNonlinear Processes in Geophysics, 1996
We study theoretically the physical origin of the proposed discrete scale invariance of earthquake processes, at the origin of the universal log-periodic corrections to scaling, recently discovered in regional seismic activity ...
H. Saleur   +3 more
doaj  

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