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We introduce a homogenization approach to characterize the dynamical response of a generic dispersive spacetime crystal in the long-wavelength limit. The theory is applied to dispersive spacetime platforms with a travelling-wave modulation.…

光学 · 物理学 2023-07-26 João C. Serra , Mário G. Silveirinha

We start from the QED Lagrangian to describe a charged many-particle system coupled to the radiation field. A covariant density matrix approach to kinetic theory of QED plasmas, subjected to a strong external electro-magnetic field has…

量子物理 · 物理学 2009-11-07 A. Hoell , V. G. Morozov , G. Roepke

The standard approach in the conventional theory of intrabeam scattering (IBS) is based on the analysis of binary Coulomb collisions of charged particles in the beam. This picture is only partially true: in reality, a given particle…

加速器物理 · 物理学 2025-04-03 Gennady Stupakov

Although the accurate description of the wave propagation and absorption in plasmas requires complicated full wave solutions or kinetic simulations, the local dispersion analysis can still be helpful to capture the main physics of wave…

等离子体物理 · 物理学 2024-05-01 Huasheng Xie , Haojie Ma , Yukun Bai

Formulas for transversal conductance and dielectric permeability (dielectric function) in quantum Maxwell collisional plasma are deduced. The kinetic equation with collision integral in the form relaxation type is used.

等离子体物理 · 物理学 2012-06-01 A. V. Latyshev , A. A. Yushkanov

The charge and potential distributions for insulating particles approaching a substrate with regular insulating structures are studied by particle-in-cell numerical simulations. An elongated particle and substrate with elongated structures…

等离子体物理 · 物理学 2016-11-15 W J Miloch , S V Vladimirov

In this research we report the dielectric response of a finite temperature electron gas, electrostatically interacting with both external and self-induced plasmonic fields, in the well-known random phase approximation. The generalized…

等离子体物理 · 物理学 2022-11-16 M. Akbari-Moghanjoughi

We introduce a simplified model of the electron-beam/plasma system to model the electrical breakdown caused by the inductive electric field created by a rapidly rising electron beam current. The rigid-beam model is a reduction to the…

等离子体物理 · 物理学 2021-03-05 S. B. Swanekamp , A. S. Richardson , Tz. B. Petrova , P. E. Adamson

We analyze the force on a point charge moving at relativistic speeds parallel to the surface of a uniaxial dielectric. Two cases are examined: a lossless dielectric with no dispersion and a dielectric with a plasma type response. The…

经典物理 · 物理学 2013-04-19 Primož Rebernik Ribič , Rudolf Podgornik

This paper describes a method to determine the complex permittivity of a thin dielectric film from finite element analysis and microstrip line measurements. Two transmission line equivalent circuit models were used for the cases of an…

应用物理 · 物理学 2019-08-02 Liang Wang , Guangrui , Xia , Hongyu Yu

With the help of the linearized perturbation theory, the collective beam instability due to the space charge, modelled by the Vlasov-Poisson equation, is well studied in the former research theoretically in a general sense [Chao Li and R.…

加速器物理 · 物理学 2019-05-27 Chao Li , R. A. Jameson

When a plasma sheath forms next to a dielectric wall, material properties determine electron absorption and reflection from the surface, impacting the sheath formation and structure. The low energy regime of this interaction is often not…

等离子体物理 · 物理学 2024-03-14 Kolter Bradshaw , Petr Cagas , Ammar Hakim , Bhuvana Srinivasan

In this Letter, we introduce a representation of the electromagnetic field for the analysis and synthesis of the full-wave scattering by a homogeneous dielectric object of arbitrary shape in terms of a set of eigenmodes independent of its…

介观与纳米尺度物理 · 物理学 2016-11-15 Carlo Forestiere , and Giovanni Miano

The one dimensional (1D) driven quantum coupled pseudoforce system governing the dynamics of collective Langmuir electron oscillations is used in order to investigate the effects of variety of space charge distributions on plasmon…

等离子体物理 · 物理学 2019-03-27 M. Akbari-Moghanjoughi

We consider plasmonic metasurfaces constituted by an arbitrary periodic arrangement of spherical metallic nanoparticles. Each nanoparticle supports three degenerate dipolar localized surface plasmon (LSP) resonances. In the regime where the…

介观与纳米尺度物理 · 物理学 2020-07-23 François Fernique , Guillaume Weick

Plasma wake-field acceleration experiments are performed at the SPARC LAB test facility by using a gas-filled capillary plasma source composed of a dielectric capillary. The electron can reach GeV energy in a few centimeters, with an…

In the limit of small concentrations and weak applied electric fields, the dielectric permittivity of suspensions of arbitrarily shaped, shelled and charged particles is calculated. It is proved that the dielectric behavior at low…

生物物理 · 物理学 2009-10-31 C. Prodan , E. Prodan

The classical two-dimensional one-component plasma is an exactly solvable model, at some special temperature, even when the one-body potential acting on the particles has a quadrupolar term. As a supplement to a recent work of Di Francesco,…

凝聚态物理 · 物理学 2015-06-25 P. J. Forrester , B. Jancovici

Electric conductivity and dielectric permeability of the non-degenerate electronic gas for the collisional plasmas under arbitrary degree of degeneration of electron gas is found. The kinetic equation of Wigner - Vlasov - Boltzmann with…

数学物理 · 物理学 2010-03-08 A. V. Latyshev , A. A. Yushkanov

We develop a general framework for the electrostatic analysis of point charges in multilayer planar structures with arbitrary layer thicknesses and material parameters. Starting from a Hankel-transform analysis, we derive alternative…

应用物理 · 物理学 2026-04-01 George Fikioris , Theodoros T. Koutserimpas , Elias N. Glytsis