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相关论文: Two-Frequency Radiative Transfer. II: Maxwell Equa…

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Anomalous diffusion phenomena are ubiquitous in complex media, such as biological tissues. A wide class of sub-diffusive phenomena phenomena is described by the time-fractional diffusion equation. The paper investigates the case of…

经典分析与常微分方程 · 数学 2018-10-02 Dimiter Prodanov

The transport equations for polarized radiation transfer in non-Riemannian, Weyl-Cartan type space-times are derived, with the effects of both torsion and non-metricity included. To obtain the basic propagation equations we use the tangent…

广义相对论与量子宇宙学 · 物理学 2009-11-11 K. S. Cheng , T. Harko , X. Y. Wang

The aim of this paper is to develop a mathematical framework for opto-elastography. In opto-elastography, a mechanical perturbation of the medium produces a decorrelation of optical speckle patterns due to the displacements of optical…

数学物理 · 物理学 2013-06-19 Habib Ammari , Emmanuel Bossy , Josselin Garnier , Wenjia Jing , Laurent Seppecher

The fractal distribution of charged particles is considered. An example of this distribution is the charged particles that are distributed over fractal. The fractional integrals are used to describe fractal distribution. These integrals are…

等离子体物理 · 物理学 2015-03-09 Vasily E. Tarasov

The focus of this study is to investigate primary and secondary bifurcations to weakly nonlinear flows (weak branch) in convective rotating spheres in a regime where only strongly nonlinear oscillatory sub- and super-critical flows (strong…

流体动力学 · 物理学 2022-01-03 Ferran Garcia , Frank Stefani , Emmanuel Dormy

The review is devoted to the modern investigations of electromagnetic radiation by relativistic charged particles propagating with constant velocity through the periodic media. Two examples of radiation are considered in this review, the…

高能物理 - 实验 · 物理学 2007-05-23 M. L. Ter-Mikayelyan

We study one of the interesting properties of the electromagnetic wave propagation in the curved Schwarzschild background spacetime in the framework of general relativity (GR). The electromagnetic wave equation has been derived from vacuum…

广义相对论与量子宇宙学 · 物理学 2023-06-23 Bobur Turimov , Igor Smolyaninov

Pendry and MacKinnon meaningful discretization of Maxwell's equations was put forward specifically as part of a finite-element numerical algorithm. By contrast with a numerical approach, in the same spirit evoked by the relationships…

光学 · 物理学 2023-03-14 Ovidiu-Zeno Lipan , Aldo De Sabata

Interfacial waves arising in a two-phase swirling flow driven by a low-frequency rotating magnetic field (RMF) are studied. At low RMF frequencies, of the order of 1-10 Hz, the oscillatory part of the induced Lorenz force becomes comparable…

流体动力学 · 物理学 2024-01-09 Gerrit Maik Horstmann , Yakov Nezihovski , Thomas Gundrum , Alexander Gelfgat

A new method for the formal solution of the 2D radiative transfer equation in axial symmetry in the presence of arbitrary velocity fields is presented. The combination of long and short characteristics methods is used to solve the radiative…

天体物理学 · 物理学 2016-08-16 D. Korčáková , J. Kubát

We study the system of two quantum dots lying on the central plane of a planar semiconductor microcavity. By solving the full Maxwell problem, we demonstrate that the rate of resonant excitation transfer between the two dots decays as…

介观与纳米尺度物理 · 物理学 2008-02-27 Guillaume Tarel , Gaetano Parascandolo , Vincenzo Savona

In this paper the coupled Maxwell-Bloch equations which describe the propagation of two optical pulses in an optical medium with coherent three-level atoms are studied by Darboux transformation. The general nth-order rogue wave solution…

可精确求解与可积系统 · 物理学 2020-02-12 Xin Wang , Lei Wang , Chong Liu

We derive basic equations of electromagnetic fields in fractal media which are specified by three indepedent fractal dimensions {\alpha}_{i} in the respective directions x_{i} (i=1,2,3) of the Cartesian space in which the fractal is…

数学物理 · 物理学 2015-05-28 Martin Ostoja-Starzewski

The Duffin-Kemmer form of massless vector field (Maxwell field) is extended to the case of arbitrary pseudo-Riemannian space-time in accordance with the tetrad recipe of Tetrode-Weyl-Fock-Ivanenko. In this approach, the Maxwell equations…

数学物理 · 物理学 2009-05-12 A. A. Bogush , E. M. Ovsiyuk , V. M. Red'kov

We study the propagation of radio waves through a medium possessing density fluctuations that are elongated along the ambient magnetic field and described by an anisotropic Goldreich-Sridhar power spectrum. We derive general formulas for…

天体物理学 · 物理学 2009-11-07 B. D. G. Chandran , D. C. Backer

A light ray in space is characterized by two vectors: (i) a transverse spatial-vector associated with the point where the ray intersects a given spherical cap; (ii) an angular-frequency vector which defines the ray direction of propagation.…

光学 · 物理学 2023-04-10 Éric Fogret , Pierre Pellat-Finet

A new method to find the propagation equation system governing the scattering of an electromagnetic wave by a nonlinear medium is proposed. The aim is to let the effects appear spontaneously, deleting as far as possible the phenomenological…

光学 · 物理学 2010-11-08 Pierre Godard , Frederic Zolla , Andre Nicolet

We present a statistical study of the transmission and dwell-time matrices in disordered media composed of resonators, focusing on how frequency detuning influences their eigenvalue distributions. Our analysis reveals that the distribution…

光学 · 物理学 2024-12-02 Romain Rescanieres , Romain Pierrat , Arthur Goetschy

Report II is concerned with the extended results of distance function wavelets (DFW). The fractional DFW transforms are first addressed relating to the fractal geometry and fractional derivative, and then, the discrete Helmholtz-Fourier…

计算工程、金融与科学 · 计算机科学 2007-05-23 W. Chen

We have theoretically studied propagation of exciton-polaritons in deterministic aperiodic multiple-quantum-well structures, particularly, in the Fibonacci and Thue-Morse chains. The attention is concentrated on the structures tuned to the…

介观与纳米尺度物理 · 物理学 2015-05-13 A. N. Poddubny , L. Pilozzi , M. M. Voronov , E. L. Ivchenko