Results 31 to 40 of about 160,560 (252)

Nonlocal Transformation Optics

open access: yesPhysical Review Letters, 2012
6 pages, 3 figures; supplementary material available ...
Castaldi, Giuseppe   +3 more
openaire   +5 more sources

A NONLOCAL VECTOR CALCULUS, NONLOCAL VOLUME-CONSTRAINED PROBLEMS, AND NONLOCAL BALANCE LAWS [PDF]

open access: yesMathematical Models and Methods in Applied Sciences, 2013
A vector calculus for nonlocal operators is developed, including the definition of nonlocal divergence, gradient, and curl operators and the derivation of the corresponding adjoint operators. Nonlocal analogs of several theorems and identities of the vector calculus for differential operators are also presented.
Du, Qiang   +3 more
openaire   +1 more source

Nonlocal star as a blackhole mimicker [PDF]

open access: yes, 2019
In the context of ghost-free, infinite derivative gravity, we will provide a quantum mechanical framework in which we can describe astrophysical objects devoid of curvature singularity and event horizon.
Buoninfante, Luca, Mazumdar, Anupam
core   +2 more sources

Nonlocal H-convergence [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2018
We introduce the concept of nonlocal $H$-convergence. For this we employ the theory of abstract closed complexes of operators in Hilbert spaces. We show uniqueness of the nonlocal $H$-limit as well as a corresponding compactness result. Moreover, we provide a characterisation of the introduced concept, which implies that local and nonlocal $H ...
openaire   +4 more sources

A Sparsity-Based InSAR Phase Denoising Algorithm Using Nonlocal Wavelet Shrinkage

open access: yesRemote Sensing, 2016
An interferometric synthetic aperture radar (InSAR) phase denoising algorithm using the local sparsity of wavelet coefficients and nonlocal similarity of grouped blocks was developed.
Dongsheng Fang   +4 more
doaj   +1 more source

Nonlocal Thermodynamics: Mathematical Model of Two-Dimensional Thermal Conductivity [PDF]

open access: yesE3S Web of Conferences, 2021
Nonlocal models of thermodynamics are becoming more and more popular in the modern world. Such models make it possible to describe materials with a complex structure and unique strength and temperature properties.
Kuvyrkin George   +2 more
doaj   +1 more source

Higgs Mechanism in Nonlocal Field Theories [PDF]

open access: yes, 2018
We study spontaneous gauge symmetry breaking and the Higgs mechanism in nonlocal field theories. Motivated by the level truncated action of string field theory, we consider a class of nonlocal field theories with an exponential factor of the d ...
Hashi, Manami Noumi   +4 more
core   +2 more sources

Nonlocal flat optics

open access: yesNature Photonics, 2022
In electromagnetics and photonics, "nonlocality" refers to the phenomenon by which the response/output of a material or system at a certain point in space depends on the input field across an extended region of space. While nonlocal effects and the associated wavevector/momentum-dependence have often been neglected or seen as a nuisance in the context ...
Kunal Shastri, Francesco Monticone
openaire   +2 more sources

Gradient models in molecular biophysics: progress, challenges, opportunities

open access: yesJournal of the Mechanical Behavior of Materials, 2013
In the interest of developing a bridge between researchers modeling materials and those modeling biological molecules, we survey recent progress in developing nonlocal-dielectric continuum models for studying the behavior of proteins and nucleic acids ...
Bardhan Jaydeep P.
doaj   +1 more source

Nonlocal optical response in metallic nanostructures

open access: yes, 2014
This review provides a broad overview of the studies and effects of nonlocal response in metallic nanostructures. In particular, we thoroughly present the nonlocal hydrodynamic model and the recently introduced generalized nonlocal optical response (GNOR)
Bozhevolnyi, Sergey I.   +3 more
core   +1 more source

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