Results 21 to 30 of about 66,459 (238)

Physics-constrained 3D convolutional neural networks for electrodynamics

open access: yesAPL Machine Learning, 2023
We present a physics-constrained neural network (PCNN) approach to solving Maxwell’s equations for the electromagnetic fields of intense relativistic charged particle beams.
Alexander Scheinker, Reeju Pokharel
doaj   +1 more source

Motion-induced radiation from electrons moving in Maxwell's fish-eye [PDF]

open access: yes, 2013
In \u{C}erenkov radiation and transition radiation, evanescent wave from motion of charged particles transfers into radiation coherently. However, such dissipative motion-induced radiations require particles to move faster than light in medium or to ...
Ang, L. K., Liu, Yangjie
core   +2 more sources

Simulating backward wave propagation in metamaterial with radial basis functions

open access: yesResults in Applied Mathematics, 2019
In this paper we revisit the radial basis function (RBF) meshless method and implement it to solve the time-dependent Maxwell's equations in metamaterials.
Jichun Li, Bing Nan
doaj   +1 more source

Perfect imaging: they don't do it with mirrors [PDF]

open access: yes, 2010
Imaging with a spherical mirror in empty space is compared with the case when the mirror is filled with the medium of Maxwell's fish eye. Exact time-dependent solutions of Maxwell's equations show that perfect imaging is not achievable with an electrical
Blaikie R J   +12 more
core   +2 more sources

Aplikasi Aljabar Geometris Pada Teori Elektrodinamika Klasik

open access: yesJurnal Fourier, 2012
In this paper geometric algebra and its aplication in the theory of classical electrodynamic will  be studied. Geometric algebra provide many simplification and new insight in the theoretical formulation and physical aplication of theory.
Joko Purwanto
doaj   +1 more source

Convection displacement current and alternative form of Maxwell-Lorentz equations [PDF]

open access: yes, 1996
Some mathematical inconsistencies in the conventional form of Maxwell's equations extended by Lorentz for a single charge system are discussed. To surmount these in framework of Maxwellian theory, a novel convection displacement current is considered as ...
Chubykalo, Andrew E.   +1 more
core   +2 more sources

Maxwell’s equations in the Myers-Perry geometry

open access: yesJournal of High Energy Physics, 2017
We demonstrate separability of the Maxwell’s equations in the Myers-Perry-(A)dS geometry and derive explicit solutions for various polarizations. Application of our construction to the four-dimensional Kerr black hole leads to a new ansatz for the ...
Oleg Lunin
doaj   +1 more source

Elliptic regularity theory applied to time harmonic anisotropic Maxwell's equations with less than Lipschitz complex coefficients [PDF]

open access: yes, 2014
The focus of this paper is the study of the regularity properties of the time harmonic Maxwell's equations with anisotropic complex coefficients, in a bounded domain with $C^{1,1}$ boundary. We assume that at least one of the material parameters is $W^{1,
Alberti, Giovanni S., Capdeboscq, Yves
core   +3 more sources

W1,p Regularity of Weak Solutions to Maxwell’s Equations

open access: yesJournal of Mathematics, 2020
In this paper, we study the steady-state Maxwell’s equations. The weak solution defined in weak formulation is considered, and the global existence is obtained in general bounded open domain.
Zhihong Chen
doaj   +1 more source

Photonic crystal fibres: mapping Maxwell’s equations onto a Schrödinger equation eigenvalue problem [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2006
We consider photonic crystal fibres (PCFs) made from arbitrary base materials and introduce a short-wavelength approximation which allows for a mapping of the Maxwell’s equations onto a dimensionless eigenvalue equations which has the form of the ...
Mortensen Niels Asger
doaj   +1 more source

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