Results 11 to 20 of about 8,470 (227)

Negative Refraction and Left-handed electromagnetism in Microwave Photonic Crystals [PDF]

, 2004
We demonstrate negative refraction of microwaves in metallic photonic crystals. The spectral response of the photonic crystal, which manifests both positive and negative refraction, is in complete agreement with band-structure calculations and numerical ...
E. Cubukcu, J. S. Derov, J. Sokoloff, K. Sakoda, N.-C. Panoiu, P. V. Parimi, P. Vodo, S. Sridhar, V. Veselago, W. T. Lu   +9 more
core   +1 more source

Effect of electromagnetic permeability on transition temperature of superconductivity

International Journal of Modern Physics B, 2023
The description of superconductivity at high-temperature is a problem that has recently been addressed. Transition temperature of superconductivity, [Formula: see text], depends on the lattice structure type, size and room pressure. In super-lattices and low-dimensional layered nanostructures, [Formula: see text] is increased by increasing the ...
M. M. Bagheri-Mohagheghi, B. Pourhassan, M. Adelifard, M. Shokooh-Saremi, S. Upadhyay   +4 more
openaire   +2 more sources

Photon Self-Energy in a Color Superconductor [PDF]

, 2001
In a color superconductor the diquark condensates break spontaneously both the color and ordinary electromagnetism, leaving a remanining rotated U(1) symmetry unbroken.
Litim, Daniel F., Manuel, Cristina
core   +2 more sources

Dimensions and Units in Electrodynamics [PDF]

, 2004
We sketch the foundations of classical electrodynamics, in particular the transition that took place when Einstein, in 1915, succeeded to formulate general relativity.
Hehl, Friedrich W., Obukhov, Yuri N.
core   +1 more source

Electromagnetics with time-varied vacuum permittivity and permeability

, 2023
Manuscript and Supplemental document, 27 pages, 11 ...
openaire   +2 more sources

A posteriori error estimation for stochastic static problems [PDF]

, 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   +6 more sources

Electromagnetic Wave Propagation in Media with Indefinite Permittivity and Permeability Tensors [PDF]

Physical Review Letters, 2003
We study the behavior of wave propagation in materials for which not all of the principle elements of the permeability and permittivity tensors have the same sign. We find that a wide variety of effects can be realized in such media, including negative refraction, near-field focusing and high impedance surface reflection.
Smith, D. R., Schurig, D.
openaire   +3 more sources

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

, 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., Bergström A., Bjorken J. D., Braginsky V. B., Camacho A., Casini H., Cohen, de Sabbata V., Denisov V. I., Einstein A., Einstein A., Fock V., Gross F., HARIHAR BEHERA, Hehl F. W., Hehl F. W., Herdegen A., Jackson J. D., Lee T. Y., Majumdar D., Mashhoon B., Mohanty S., Møller C., P. C. NAIK, Peres A., Reina C., Schwinger J., Shiromizu T., Synge J. L., Thorne K. S., Tiomno J, Unnikrishnan C. S., Varjú K., Varjú K., Visser M., Wald R., Weinberg S., Williams J. G.   +37 more
core   +1 more source

Volume integral equations for electromagnetic scattering in two dimensions

, 2015
We study the strongly singular volume integral equation that describes the scattering of time-harmonic electromagnetic waves by a penetrable obstacle.
Costabel, Martin, Darrigrand, Eric, Sakly, Hamdi   +2 more
core   +4 more sources

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

IEEE 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, Franz Diwoky, Martin Mohr, Damijan Miljavec   +3 more
doaj   +1 more source