Results 1 to 10 of about 101,340 (244)

Bayesian renormalization

open access: yesMachine Learning: Science and Technology, 2023
In this note we present a fully information theoretic approach to renormalization inspired by Bayesian statistical inference, which we refer to as Bayesian renormalization.
David S Berman   +2 more
doaj   +4 more sources

Laplacian renormalization group for heterogeneous networks [PDF]

open access: yesNature Physics, 2022
The renormalization group method is routinely employed in studies of criticality in many areas of physics. A framework based on a field theoretical description of information diffusion now extends this tool to the study of complex networks.
Pablo Villegas   +3 more
semanticscholar   +1 more source

Rapid computation of effective conductivity of 2D composites by equivalent circuit and spectral methods

open access: yesMathematics in Engineering, 2022
This work presents models for homogenizing or finding the effective transport or mechanical properties of microscale composites formed from highly contrasting phases described on a grid.
Ben J. Ransom, Dean R. Wheeler
doaj   +1 more source

Reconstruction of observed mechanical motions with artificial intelligence tools

open access: yesNew Journal of Physics, 2022
The goal of this paper is to determine the laws of observed trajectories assuming that there is a mechanical system in the background and using these laws to continue the observed motion in a plausible way.
Antal Jakovác   +2 more
doaj   +1 more source

The Problem of Renormalization of Chiral Nuclear Forces

open access: yesFrontiers in Physics, 2020
Ever since quantum field theory was first applied to the derivation of nuclear forces in the mid-twentieth century, the renormalization of pion exchange with realistic couplings has presented a challenge.
U. van Kolck, U. van Kolck
doaj   +1 more source

Phonon renormalization in reconstructed MoS2 moiré superlattices [PDF]

open access: yesNature Materials, 2020
In moiré crystals formed by stacking van der Waals materials, surprisingly diverse correlated electronic phases and optical properties can be realized by a subtle change in the twist angle.
Jiamin Quan   +17 more
semanticscholar   +1 more source

Predominance of non-adiabatic effects in zero-point renormalization of the electronic band gap [PDF]

open access: yesnpj Computational Materials, 2020
Electronic and optical properties of materials are affected by atomic motion through the electron–phonon interaction: not only band gaps change with temperature, but even at absolute zero temperature, zero-point motion causes band-gap renormalization. We
A. Miglio   +8 more
semanticscholar   +1 more source

Giant bandgap renormalization and excitonic effects in a monolayer transition metal dichalcogenide semiconductor. [PDF]

open access: yesNature Materials, 2014
Two-dimensional (2D) transition metal dichalcogenides (TMDs) are emerging as a new platform for exploring 2D semiconductor physics. Reduced screening in two dimensions results in markedly enhanced electron-electron interactions, which have been predicted
M. M. Ugeda   +12 more
semanticscholar   +1 more source

Regularization in quantum field theories

open access: yesVojnotehnički Glasnik, 2022
Introduction/purpose: The principal techniques of regularization schemes and their validity for gauge field theories are discussed. Methods: Schemes of dimensional regularization, Pauli–Villars and lattice regularization are discussed.
Nicola Fabiano
doaj   +1 more source

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