Results 91 to 100 of about 35,463 (213)

Perturbative Renormalizations of Anyon Quantum Mechanics

open access: yes, 1994
In bosonic end perturbative calculations for quantum mechanical anyon systems a regularization and renormalization procedure, analogous to those used in field theory, is necessary.
A. Comtet   +49 more
core   +1 more source

Sharp commutator estimates of all order for Coulomb and Riesz modulated energies

open access: yesCommunications on Pure and Applied Mathematics, Volume 79, Issue 2, Page 207-292, February 2026.
Abstract We prove functional inequalities in any dimension controlling the iterated derivatives along a transport of the Coulomb or super‐Coulomb Riesz modulated energy in terms of the modulated energy itself. This modulated energy was introduced by the second author and collaborators in the study of mean‐field limits and statistical mechanics of ...
Matthew Rosenzweig, Sylvia Serfaty
wiley   +1 more source

Running couplings from adiabatic regularization

open access: yesPhysics Letters B, 2019
We extend the adiabatic regularization method by introducing an arbitrary mass scale μ in the construction of the subtraction terms. This allows us to obtain, in a very robust way, the running of the coupling constants by demanding μ-invariance of the ...
Antonio Ferreiro, Jose Navarro-Salas
doaj   +1 more source

High-loop perturbative renormalization constants for Lattice QCD (II): three-loop quark currents for tree-level Symanzik improved gauge action and n_f=2 Wilson fermions

open access: yes, 2013
Numerical Stochastic Perturbation Theory was able to get three- (and even four-) loop results for finite Lattice QCD renormalization constants. More recently, a conceptual and technical framework has been devised to tame finite size effects, which had ...
Brambilla, Michele, Di Renzo, Francesco
core   +1 more source

Overcoming Set Imbalance in Data‐Driven Parameterization: A Case Study of Gravity Wave Momentum Transport

open access: yesJournal of Advances in Modeling Earth Systems, Volume 18, Issue 2, February 2026.
Abstract Machine learning for the parameterization of subgrid‐scale processes in climate models has been widely researched and adopted in a few models. A key challenge in developing data‐driven parameterization schemes is how to properly represent rare, but important events that occur in geoscience data sets.
L. Minah Yang, Edwin P. Gerber
wiley   +1 more source

Quantum GraviElectro Dynamics

open access: yesAnnalen der Physik, Volume 538, Issue 1, January 2026.
The BRST invariant Lagrangian of the gravitationally interacting U(1)$U(1)$ gauge theory, namely the Quantum GraviElectro Dynamics (QGED). The Yan–Mills theory with the Hilbert–Einstein gravitational Lagrangian, namely the Yang–Mills–Utiyama (YMU) theory, is defined and quantised using the standard procedure. The theory is perturbatively renormalisable,
Yoshimasa Kurihara
wiley   +1 more source

Automatized One-Loop Calculations in 4 and D dimensions

open access: yes, 1998
Two program packages are presented for evaluating one-loop amplitudes. They can work either in dimensional regularization or in constrained differential renormalization.
't Hooft   +39 more
core   +1 more source

From operator product expansion to anomalous dimensions

open access: yesJournal of High Energy Physics
We propose a new method for computing the renormalization functions, which is based on the ideas of operator product expansion and large momentum expansion.
Rijun Huang, Qingjun Jin, Yi Li
doaj   +1 more source

Five-loop anomalous dimensions of cubic scalar theory from operator product expansion

open access: yesJournal of High Energy Physics
In this work, we compute the anomalous dimensions of the ϕ Q operator in six-dimensional cubic scalar theory. The renormalization analysis is carried out within the framework of the Operator Product Expansion method, while the ultraviolet divergences of ...
Rijun Huang, Qingjun Jin, Yi Li
doaj   +1 more source

Higher derivative sigma models

open access: yesJournal of High Energy Physics
We explore the nature of running couplings in the higher derivative linear and nonlinear sigma models and show that the results in dimensional regularization for the physical running couplings do not always match the values quoted in the literature. Heat
John F. Donoghue, Gabriel Menezes
doaj   +1 more source

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