Results 1 to 10 of about 8,606 (269)

Quantum levitation by left-handed metamaterials [PDF]

open access: yes, 2007
Left-handed metamaterials make perfect lenses that image classical electromagnetic fields with significantly higher resolution than the diffraction limit. Here we consider the quantum physics of such devices.
Casimir H B G   +20 more
core   +6 more sources

Determination of dielectric permeability of substances by electromagnetic waveguide method

open access: yesJournal of Physics and Electronics, 2020
A method for determining the complex permittivity of substances by the electromagnetic (EM) waveguide method in the microwave range using electrodynamics and the theory of multilayer dielectric structures is considered. The expression for the complex reflection coefficient of an EM wave in a waveguide with a substance sample is studied. Calculations of
E. R. Beznosova   +4 more
openaire   +2 more sources

A posteriori error estimation for stochastic static problems [PDF]

open access: yes, 2014
To solve stochastic static field problems, a discretization by the Finite Element Method can be used. A system of equations is obtained with the unknowns (scalar potential at nodes for example) being random variables. To solve this stochastic system, the
CLENET, Stéphane, MAC, Hung
core   +5 more sources

Volume integral equations for electromagnetic scattering in two dimensions

open access: yes, 2015
We study the strongly singular volume integral equation that describes the scattering of time-harmonic electromagnetic waves by a penetrable obstacle.
Costabel, Martin   +2 more
core   +2 more sources

Gravitomagnetic Moments and Dynamics of Dirac's (spin 1/2) fermions in flat space-time Maxwellian Gravity

open access: yes, 2003
The gravitational effects in the relativistic quantum mechanics are investigated in a relativistically derived version of Heaviside's speculative Gravity (in flat space-time) named here as Maxwellian Gravity.
Aldrovandi R.   +37 more
core   +1 more source

Fast and Accurate Non-Linear Time-Domain Modeling of Synchronous Machines

open access: yesIEEE Access
The paper presents a novel method for non-linear 2D magnetic analyses of synchronous electric machines, with the emphasis on permanent magnet and synchronous reluctance AC machines with distributed windings.
Mario Vukotic   +3 more
doaj   +1 more source

Magnetic tweezers with high permeability electromagnets for fast actuation of magnetic beads [PDF]

open access: yesReview of Scientific Instruments, 2015
As a powerful and versatile scientific instrument, magnetic tweezers have been widely used in biophysical research areas, such as mechanical cell properties and single molecule manipulation. If one wants to steer bead position, the nonlinearity of magnetic properties and the strong position dependence of the magnetic field in most magnetic tweezers ...
La Chen   +2 more
openaire   +4 more sources

Frequency converter implementing an optical analogue of the cosmological redshift

open access: yes, 2010
According to general relativity, the frequency of electromagnetic radiation is altered by the expansion of the universe. This effect--commonly referred to as the cosmological redshift--is of utmost importance for observations in cosmology.
Balazs   +26 more
core   +1 more source

Canonical quantization of macroscopic electromagnetism [PDF]

open access: yes, 2010
Application of the standard canonical quantization rules of quantum field theory to macroscopic electromagnetism has encountered obstacles due to material dispersion and absorption.
Amooshahi M   +13 more
core   +2 more sources

Maxwell's equations as a special case of deformation of a solid lattice in Euler's coordinates [PDF]

open access: yes, 2016
It is shown that the set of equations known as Maxwell's equations perfectly describe two very different systems: (1) the usual electromagnetic phenomena in vacuum or in the matter and (2) the deformation of isotropic solid lattices, containing ...
Gremaud, G.
core   +3 more sources

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