Results 1 to 10 of about 156,184 (217)

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   +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

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

Interpolation Formulas for Asymptotically Safe Cosmology

open access: yesUniverse, 2023
Simple interpolation formulas are proposed for the description of the renormalization group (RG) scale dependences of the gravitational couplings in the framework of the 2-parameters Einstein-Hilbert (EH) theory of gravity and applied to a simple ...
Sandor Nagy, Kornel Sailer
doaj   +1 more source

Triad second renormalization group

open access: yesJournal of High Energy Physics, 2022
We propose a second renormalization group (SRG) in the triad representation of tensor networks. The SRG method improves two parts of the triad tensor renormalization group, which are the decomposition of intermediate tensors and the preparation of ...
Daisuke Kadoh   +2 more
doaj   +1 more source

Multi-collinear splitting kernels for track function evolution

open access: yesJournal of High Energy Physics, 2023
Jets and their substructure play a central role in many analyses at the Large Hadron Collider (LHC). To improve the precision of measurements, as well as to enable measurement of jet substructure at increasingly small angular scales, tracking information
Hao Chen   +5 more
doaj   +1 more source

Renormalization group evolution with scalar leptoquarks

open access: yesJournal of High Energy Physics, 2023
Leptoquarks are theoretically well-motivated and have received increasing attention in recent years as they can explain several hints for physics beyond the Standard Model.
Sumit Banik, Andreas Crivellin
doaj   +1 more source

Automatic differentiable numerical renormalization group

open access: yesPhysical Review Research, 2022
Machine learning techniques have recently gained prominence in physics, yielding a host of new results and insights. One key concept is that of backpropagation, which computes the exact gradient of any output of a program with respect to any input.
Jonas B. Rigo, Andrew K. Mitchell
doaj   +1 more source

Higher logarithms and ε-poles for the MS-like renormalization prescriptions

open access: yesJournal of High Energy Physics, 2023
We consider a version of dimensional regularization (reduction) in which the dimensionful regularization parameter Λ is in general different from the renormalization scale μ.
N. P. Meshcheriakov   +2 more
doaj   +1 more source

Ward-constrained melonic renormalization group flow

open access: yesPhysics Letters B, 2020
In recent years, interesting investigations of the nonperturbative renormalization group equations for tensorial group field theories have been performed in the truncation method, while completely discarding the Ward identities from their analysis.
Vincent Lahoche, Dine Ousmane Samary
doaj   +1 more source

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