Results 31 to 40 of about 156,184 (217)

Asymptotic freedom and higher derivative gauge theories

open access: yesJournal of High Energy Physics, 2021
The ultraviolet completion of gauge theories by higher derivative terms can dramatically change their behavior at high energies. The requirement of asymptotic freedom imposes very stringent constraints that are only satisfied by a small family of higher ...
M. Asorey, F. Falceto, L. Rachwał
doaj   +1 more source

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

Higher loop renormalization of a supersymmetric field theory [PDF]

open access: yes, 2007
Using Dyson--Schwinger equations within an approach developed by Broadhurst and Kreimer and the renormalization group, we show how high loop order of the renormalization group coefficients can be efficiently computed in a supersymmetric model.Comment: 8 ...
Bogoliubov   +11 more
core   +7 more sources

Renormalization Group Functional Equations

open access: yes, 2010
Functional conjugation methods are used to analyze the global structure of various renormalization group trajectories, and to gain insight into the interplay between continuous and discrete rescaling.
A. B. Zamolodchikov   +11 more
core   +1 more source

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

Stochastic renormalization group and gradient flow

open access: yesJournal of High Energy Physics, 2020
A non-perturbative and continuous definition of RG transformations as stochastic processes is proposed, inspired by the observation that the functional RG equations for effective Boltzmann factors may be interpreted as Fokker-Planck equations. The result
Andrea Carosso
doaj   +1 more source

Inflation and nonequilibrium renormalization group [PDF]

open access: yes, 2006
We study de spectrum of primordial fluctuations and the scale dependence of the inflaton spectral index due to self-interactions of the field. We compute the spectrum of fluctuations by applying nonequilibrium renormalization group techniques.Comment: 6 ...
Ballesteros G   +10 more
core   +3 more sources

Infusible Extracellular Matrix Biomaterial Enhances Cell‐Specific Pro‐Repair Responses Following Acute Myocardial Infarction

open access: yesAdvanced Healthcare Materials, EarlyView.
We measure the cell‐specific responses of administering infusible ECM (iECM) in acute myocardial infarction (MI) across multiple timepoints. Using single‐nucleus RNA sequencing and spatial transcriptomics, we measure macrophage activation, fibroblast remodeling, increased vascular development, lymphangiogenesis, cardioprotection, and neurogenesis ...
Joshua M. Mesfin   +18 more
wiley   +1 more source

Renormalization group equations and integrability in Hamiltonian systems

open access: yes, 1998
We investigate Hamiltonian systems with two degrees of freedom by using renormalization group method. We show that the original Hamiltonian systems and the renormalization group equations are integrable if the renormalization group equations are ...
Nambu, Yasusada, Yamaguchi, Yoshiyuki Y.
core   +2 more sources

Renormalization Group Improved BFKL Equation [PDF]

open access: yes, 1999
I report on the recent proposal of a generalized small-x equation which, in addition to exact leading and next-to-leading BFKL kernels, incorporates renormalization group constraints in the relevant collinear limits.Comment: Talk presented at DIS99 ...
Camici   +3 more
core   +3 more sources

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