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相关论文: Deducing the Talbot Effect from Electrodynamics

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In this paper, we prove the null controllability of some parabolic-elliptic systems. The control is distributed, locally supported in space and appears only in one PDE. The arguments rely on fixed-point reformulation and suitable Carleman…

最优化与控制 · 数学 2012-04-16 E. Fernández-Cara , J. Limaco , S. B. de Menezes

We study the large time behavior of solutions to the wave equation with space-dependent damping in an exterior domain. We show that if the damping is effective, then the solution is asymptotically expanded in terms of solutions of…

偏微分方程分析 · 数学 2024-03-12 Motohiro Sobajima , Yuta Wakasugi

It is shown that the universal Newton time may be introduced in the classical electrodynamics. The statement results from an existence of the generalized symmetry of Maxwell equations with respect to Galilei transformations…

经典物理 · 物理学 2007-05-23 G. A. Kotel'nikov

We investigate the propagation of certain non-plane wave solutions to Maxwell's equations in both flat and curved spacetimes. We find that such solutions (or rather parts of them) exhibit accelerative behaviour, and in particular do not…

物理学史与哲学 · 物理学 2023-11-16 Felipe A. Asenjo , Sergio A. Hojman , Niels Linnemann , James Read

We prove a global fractional differentiability result via the fractional Caccioppoli-type estimate for solutions to nonlinear elliptic problems with measure data. This work is in fact inspired by the recent paper [B. Avelin, T. Kuusi, G.…

偏微分方程分析 · 数学 2020-09-08 Minh-Phuong Tran , Thanh-Nhan Nguyen

We consider a heterogeneous elastic structure which is stratified in some direction. We derive the limit problem under the assumption that the Lam\'e coefficients and their inverses weakly* converge to Radon measures. Our method applies…

偏微分方程分析 · 数学 2016-03-03 Michel Bellieud , Shane Cooper

The standard Large Deviation Theory (LDT) is mathematically illustrated by the Boltzmann-Gibbs factor which describes the thermal equilibrium of short-range-interacting many-body Hamiltonian systems, the velocity distribution of which is…

统计力学 · 物理学 2021-12-24 Ugur Tirnakli , Constantino Tsallis , Nihat Ay

We derive global analytic representations of fundamental solutions for a class of linear parabolic systems with full coupling of first order derivative terms where coefficient may depend on space and time. Pointwise convergence of the…

偏微分方程分析 · 数学 2009-07-17 Joerg Kampen

We analyze how can some dynamical process lead to (almost) exponential distribution of hadrons without instantaneous equipartition with a heat bath. We present a model for parton dressing whic re-combines the exponential from cut power law…

高能物理 - 唯象学 · 物理学 2007-05-23 Tamas S. Biro , Gabor Purcsel , Berndt Muller

The present study deals with total internal reflection of a plane electromagnetic wave at an infinite plane boundary between a transparent medium and an amplifying or attenuating lower-index medium. Solutions of Maxwell's equations are…

光学 · 物理学 2023-06-13 Takeyuki Kobayashi

This paper is the second in a series revisiting the (effect of) Faraday rotation. We formulate and prove the thermodynamic limit for the transverse electric conductivity of Bloch electrons, as well as for the Verdet constant. The main…

介观与纳米尺度物理 · 物理学 2009-09-23 H. D. Cornean , G. Nenciu

We study the long-time behavior of localized solutions to linear or semilinear parabolic equations in the whole space $\mathbb{R}^n$, where $n \ge 2$, assuming that the diffusion matrix depends on the space variable $x$ and has a finite…

偏微分方程分析 · 数学 2020-05-29 Thierry Gallay , Romain Joly , Geneviève Raugel

A self-consistent extended Einstein-Maxwell model for relativistic non-stationary polarizable-magnetizable anisotropic media is presented. Based on the analogy with relativistic extended irreversible (transient) thermodynamics, the extended…

广义相对论与量子宇宙学 · 物理学 2008-11-26 A. B. Balakin

We formulate a covariant version of Maxwell-like fracton electrodynamics in six dimensions using a symmetric tensor gauge field with scalar gauge symmetry $\delta A_{\mu\nu}=\partial_\mu\partial_\nu\Lambda$. This provides a relativistic…

高能物理 - 理论 · 物理学 2026-04-20 Nicola Maggiore

We show that the Maxwell equations describing an electromagnetic wave are a mathematical consequence of the Einstein equations for the same wave. This fact is significant for the problem of the Einsteinian metrics corresponding to the…

综合物理 · 物理学 2011-06-14 A. Loinger , T. Marsico

We consider an ordinary differential equation with a unique hyperbolic attractor at the origin, to which we add a small random perturbation. It is known that under general conditions, the solution of this stochastic differential equation…

概率论 · 数学 2023-05-05 Gerardo Barrera , Milton Jara

The goal of this work is to study the electromagnetic scattering problem of time-domain Maxwell's equations in an unbounded structure. An exact transparent boundary condition is developed to reformulate the scattering problem into an…

偏微分方程分析 · 数学 2016-04-27 Yixian Gao , Peijun Li

A procedure to teach Electrodynamics independently of unit systems is presented and compared with some of those given in physics literature.

物理教育 · 物理学 2007-05-23 C. Vrejoiu

We investigate nonexistence of nontrivial nonnegative solutions to a class of semilinear parabolic equations with a positive potential, posed on weighted graphs. Assuming an upper bound on the Laplacian of the distance and a suitable…

偏微分方程分析 · 数学 2025-03-10 Dario D. Monticelli , Fabio Punzo , Jacopo Somaglia

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,…

综合物理 · 物理学 2016-10-05 G. Gremaud