Results 11 to 20 of about 88,487 (267)

Calculation of photon dispersion relations [PDF]

open access: yesPhysical Review Letters, 1992
The current generation of photon scattering experiments requires a fast, accurate, general technique for calculation of transmission coefficients and of photonic band structure. A new methodology, which has significant advantages of speed and convenience, enables the band structure and, for the first time, transmission coefficients of complex ...
Pendry, JB, MacKinnon, A
openaire   +4 more sources

Dispersion relation for CFT four-point functions

open access: yesJournal of High Energy Physics, 2020
We present a dispersion relation in conformal field theory which expresses the four point function as an integral over its single discontinuity. Exploiting the analytic properties of the OPE and crossing symmetry of the correlator, we show that in ...
Agnese Bissi, Parijat Dey, Tobias Hansen
doaj   +1 more source

Stability Analysis for an Interface with a Continuous Internal Structure

open access: yesFluids, 2021
A general method for solving a linear stability problem of an interface with a continuous internal structure is described. Such interfaces or fronts are commonly found in various branches of physics, such as combustion and plasma physics.
Mikhail Modestov
doaj   +1 more source

Radiative Corrections to Semileptonic Beta Decays: Progress and Challenges

open access: yesParticles, 2021
We review some recent progress in the theory of electroweak radiative corrections in semileptonic decay processes. The resurrection of the so-called Sirlin’s representation based on current algebra relations permits a clear separation between the ...
Chien-Yeah Seng
doaj   +1 more source

The Effect of Micro-Inertia and Flexoelectricity on Love Wave Propagation in Layered Piezoelectric Structures

open access: yesNanomaterials, 2021
The non-classical linear governing equations of strain gradient piezoelectricity with micro-inertia effect are used to investigate Love wave propagation in a layered piezoelectric structure.
Olha Hrytsyna   +2 more
doaj   +1 more source

A Case Study of the Stratospheric and Mesospheric Concentric Gravity Waves Excited by Thunderstorm in Northern China

open access: yesAtmosphere, 2018
In this paper, the complete process in which a concentric gravity wave (CGW), excited by a tropospheric thunderstorm, propagated into the stratosphere and mesosphere in Northern China is investigated.
Ying Wen   +4 more
doaj   +1 more source

Controlling Refraction Using Sub-Wavelength Resonators

open access: yesApplied Sciences, 2018
We construct metamaterials from sub-wavelength nonmagnetic resonators and consider the refraction of incoming signals traveling from free space into the metamaterial.
Yue Chen, Robert Lipton
doaj   +1 more source

Dispersion relations in κ-noncommutative cosmology [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2021
Abstract We study noncommutative deformations of the wave equation in curved backgrounds and discuss the modification of the dispersion relations due to noncommutativity combined with curvature of spacetime. Our noncommutative differential geometry approach is based on Drinfeld twist deformation, and can be implemented for any twist and
Aschieri P., Borowiec A., Pachol A.
openaire   +3 more sources

Hot plasma effects on the dispersion properties of plasmaspheric hiss and its electron diffusion

open access: yes地球与行星物理论评, 2023
Electron diffusion caused by plasmaspheric hiss is an important mechanism for the loss of electrons in Earth's inner magnetosphere; it has also been considered responsible for the formation of the slot region between inner and outer radiation belts.
Xin Ma   +5 more
doaj   +1 more source

Dispersion relations, capillary waves, and the Rayleigh-Plateau instability [PDF]

open access: yesINCAS Bulletin, 2022
The paper shows the importance of the dispersion relation in characterizing the capillary waves seen on liquid jets. Several theoretical models are given to better understand the stability of cylindrical interfaces when various parameters are considered,
Claudiu PATRASCU, Corneliu BALAN
doaj   +1 more source

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