中文
相关论文

相关论文: Electrostatic limit of the $T$-matrix for electrom…

200 篇论文

Consider the electromagnetic scattering of a time-harmonic plane wave by an open cavity which is embedded in a perfectly electrically conducting infinite ground plane. This paper is concerned with the numerical solutions of the transverse…

数值分析 · 数学 2021-04-07 Yanli Chen , Peijun Li , Xiaokai Yuan

General formulas describing the multiple scattering of electron by polyatomic molecules have been derived within the framework of the model of non-overlapping atomic potentials. These formulas are applied to different carbon molecules, both…

原子物理 · 物理学 2018-09-27 A. S. Baltenkov , S. T. Manson , A. Z. Msezane

The paper derives the representation of the two-particle T-matrix scattering elements for the Coulomb interaction with respect to special bases without expansion in terms of partial waves. The results obtained are applicable to…

数学物理 · 物理学 2019-04-30 Robert Akhmetyanov , Elena Shikhovtseva

We derive a generalized Low equation for the T-matrix appropriate for complex atom-molecule interaction. The properties of this new equation at very low energies are studied and the complex scattering length and effective range are derived.

原子物理 · 物理学 2009-11-06 M. S. Hussein

Electromagnetic scattering and absorption by material particles is a fundamental physical problem with a broad range of applications, going from laboratory experiments, biology and material sciences, all the way up to environmental studies…

天体物理仪器与方法 · 物理学 2026-02-06 G. La Mura , G. Mulas , G. Aresu , M. A. Iatì , C. Cecchi-Pestellini , S. Rezaei , R. Saija

In this work, we are interested in solving large linear systems stemming from the Extra-Membrane-Intra (EMI) model, which is employed for simulating excitable tissues at a cellular scale. After setting the related systems of partial…

数值分析 · 数学 2023-08-24 Pietro Benedusi , Paola Ferrari , Marie Rognes , Stefano Serra-Capizzano

We report the publication of treams, a new software for electromagnetic scattering computations based on the T-matrix method. Besides conventional T-matrix calculations for individual scatterers and finite clusters of particles, a unique…

计算物理 · 物理学 2023-09-07 Dominik Beutel , Ivan Fernandez-Corbaton , Carsten Rockstuhl

A generic problem of high frequency wave propagation along a metallic strip in parallel above a PEC ground plane is considered. The wave is excited by an elemental electric dipole at an arbitrary location above the PEC plane. The full wave…

数学物理 · 物理学 2012-04-24 Martin Norgren

Electromagnetic fields in bulk bianisotropic media can be represented using plane waves whose k-vectors can be found using the index of refraction operator method and belong to the Fresnel wave surfaces that fall into one of the 5…

光学 · 物理学 2023-02-21 Maxim Durach

In this work, we provide a complete description of the scattering matrix elements and electron energy spectrum in one dimensional PT-symmetric hybrid finite systems, using the characteristic determinant approach. We present an analytical…

介观与纳米尺度物理 · 物理学 2026-05-05 Vladimir Gasparian , Esther Jódar , Antonio Pérez-Garrido

A formula for the electromagnetic (EM) field in the medium, in which many small perfectly conducting particles of an arbitrary shape are distributed, is derived.

数学物理 · 物理学 2015-06-18 Alexander G. Ramm

Electromagnetic scattering on a sphere is one of the most fundamental problems, which has a closed form analytical solution in the form of Mie series. Being initially formulated for a plane incident wave, the formalism can be extended to…

光学 · 物理学 2021-06-11 Yuval Kashtera , Eran Falek , Pavel Ginzburg

In this chapter, we demonstrate a general formulation of the Finite Element Method allowing to calculate the diffraction efficiencies from the electromagnetic field diffracted by arbitrarily shaped gratings embedded in a multilayered stack…

光学 · 物理学 2013-02-06 Guillaume Demésy , Frédéric Zolla , André Nicolet , Benjamin Vial

We use a deterministic particle method to produce numerical approximations to the solutions of an evolution cross-diffusion problem for two populations. According to the values of the diffusion parameters related to the intra and…

数值分析 · 数学 2024-01-29 Gonzalo Galiano , Virginia Selgas

The extended boundary condition method can be formulated to study plane-wave scattering by an ellipsoid composed of an orthorhombic dielectric-magnetic material whose relative permittivity dyadic is a scalar multiple of its relative…

光学 · 物理学 2019-05-22 H. M. Alkhoori , A. Lakhtakia , J. K. Breakall , C. F. Bohren

We prove sharp wavenumber-explicit error bounds for first- or second-family-N\'ed\'elec-element (a.k.a. edge-element) conforming discretisations, of arbitrary (fixed) order, of the variable-coefficient time-harmonic Maxwell equations posed…

数值分析 · 数学 2026-01-09 Théophile Chaumont-Frelet , Jeffrey Galkowski , Euan A. Spence

A novel boundary element formulation for solving problems involving eddy currents in the thin skin depth approximation is developed. It is assumed that the time-harmonic magnetic field outside the scatterers can be described using the…

计算物理 · 物理学 2021-02-03 Nail A. Gumerov , Ross N. Adelman , Ramani Duraiswami

This paper introduces a boundary integral equation for time-harmonic electromagnetic scattering by composite dielectric objects. The formulation extends the classical M\"uller equation to composite structures through the global multi-trace…

数值分析 · 数学 2026-01-21 Van Chien Le , Kristof Cools

In this work, we study the elastic scattering behavior of electron vortices when propagating through amorphous samples. We use a formulation of the multislice approach in cylindrical coordinates to theoretically investigate the…

材料科学 · 物理学 2021-03-22 Stefan Löffler , Stefan Sack , Thomas Schachinger

We present a detailed study of a contribution of the T matrix accounting for multiple scattering between an electron and a hole to the quasiparticle self-energy. This contribution is considered as an additional term to the GW self-energy.…

其他凝聚态物理 · 物理学 2007-05-23 I. A. Nechaev , E. V. Chulkov