Results 111 to 120 of about 326,761 (366)

Renormalization of the two-dimensional stochastic nonlinear wave equations [PDF]

open access: yesTransactions of the American Mathematical Society, 2017
We study the two-dimensional stochastic nonlinear wave equations (SNLW) with an additive space-time white noise forcing. In particular, we introduce a time-dependent renormalization and prove that SNLW is pathwise locally well-posed. As an application of
Massimiliano Gubinelli   +2 more
semanticscholar   +1 more source

Heterostructured Electrocatalysts: from Fundamental Microkinetic Model to Electron Configuration and Interfacial Reactive Microenvironment

open access: yesAdvanced Materials, EarlyView.
Heterostructures have emerged as advanced electrocatalysts to convert earth‐abundant simple molecules into high‐value‐added products. On the basis of atomistic understanding to accelerate the electrochemical processes, the architecture of heterostructured electrocatalysts is comprehensively discussed from the point of view of modulating electronic ...
Yun Li   +3 more
wiley   +1 more source

Vacuum Polarization in a Zero-Width Potential: Self-Adjoint Extension

open access: yesUniverse, 2021
The effects of vacuum polarization associated with a massless scalar field near pointlike source with a zero-range potential in three spatial dimensions are analyzed.
Yuri V. Grats, Pavel Spirin
doaj   +1 more source

Renormalization of symmetric bimodal maps with low smoothness [PDF]

open access: yes, 2020
This paper deals with the renormalization of symmetric bimodal maps with low smoothness. We prove the existence of the renormalization fixed point in the space $C^{1+Lip}$ symmetric bimodal maps. Moreover, we show that the topological entropy of the renormalization operator defined on the space of $C^{ 1+Lip}$ symmetric bimodal maps is infinite ...
arxiv   +1 more source

Multiscale unfolding of real networks by geometric renormalization [PDF]

open access: yesNature Physics, 2017
Symmetries in physical theories denote invariance under some transformation, such as self-similarity under a change of scale. The renormalization group provides a powerful framework to study these symmetries, leading to a better understanding of the ...
Guillermo García-Pérez   +2 more
semanticscholar   +1 more source

Functional renormalization group approach to zero-dimensional interacting systems

open access: yes, 2004
We apply the functional renormalization group method to the calculation of dynamical properties of zero-dimensional interacting quantum systems. As case studies we discuss the anharmonic oscillator and the single impurity Anderson model.
Allen J W   +28 more
core   +1 more source

Non-Commutative Renormalization [PDF]

open access: yes, 2007
We review the recent approach of Grosse and Wulkenhaar to the perturbative renormalization of non commutative field theory and suggest a related constructive program. This paper is dedicated to J. Bros on his 65th birthday.
Rivasseau, Vincent, Vignes-Tourneret, F.
openaire   +7 more sources

Hybrid Electroluminescence Device for On‐Demand Single Photon Generation at Room Temperature

open access: yesAdvanced Optical Materials, EarlyView.
New type of electroluminescent device based on hBN nanocrystals deposited on a GaN laser diode displays electrically driven emission of single photons at room temperature. Low g2(0) autocorrelation function values are achieved of < 0.2 for continuous driving and < 0.4 for on‐demand single‐photon emission.
Aleksander Rodek   +8 more
wiley   +1 more source

Renormalizability of Alternative Theories of Gravity: Differences between Power Counting and Entropy Argument

open access: yesUniverse, 2021
It is well known that General Relativity cannot be considered under the standard of a perturbatively renormalizable quantum field theory, but asymptotic safety is taken into account as a possibility for the formulation of gravity as a non-perturbative ...
Francesco Bajardi   +2 more
doaj   +1 more source

Period tripling and quintupling renormalizations below $C^2$ space [PDF]

open access: yes, 2020
In this paper, we explore the period tripling and period quintupling renormalizations below $C^2$ class of unimodal maps. We show that for a given proper scaling data there exists a renormalization fixed point on the space of piece-wise affine maps which are infinitely renormalizable.
arxiv   +1 more source

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