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We show that the effective gauge field for photons provides a versatile platform for controlling the flow of light. As an example we consider a photonic resonator lattice where the coupling strength between nearest neighbor resonators are…

光学 · 物理学 2015-06-17 Kejie Fang , Shanhui Fan

It is shown that the connection of sufficiently fast flows with dynamical channels for particle escape in the Solar Corona is rather direct: it depends on their ability to deform (in specific cases to distort) the ambient magnetic field…

We use a pin-grid electrode to introduce a corrugated electrical potential into a planar dielectric-barrier discharge (DBD) system, so that the amplitude of the applied electric field has the profile of a two-dimensional square lattice. The…

斑图形成与孤子 · 物理学 2015-06-03 Josiah Sinclair , Matthew Walhout

Effective potential of a charged dusty particle moving in homogeneous plasma has a negative part that provides attraction between similarly charged dusty particles. A depth of this potential well is great enough to ensure both stability of…

等离子体物理 · 物理学 2009-11-10 Andrei G. Bashkirov

We consider free electrons in rectangular quantum dots, with either hard wall boundary conditions or anharmonic confinement. In both cases, due to finite size effects, a homogeneous electric field applied along one of the rectangular axis…

介观与纳米尺度物理 · 物理学 2007-05-23 Stephane Pleutin

Bacteria can form a great variety of spatially heterogeneous cell density patterns, ranging from simple concentric rings to dynamical spiral waves appearing in growing colonies. These pattern formation phenomena are important as they…

种群与进化 · 定量生物学 2025-01-17 John S. Chuang , Riccardo Rao , Stanislas Leibler

Two-dimensional granular discharge flow driven by gravity under the influence of an obstacle is experimentally investigated. A horizontal exit of width $W$ is opened at the bottom of vertical Hele-Shaw cell filled with stainless-steel…

软凝聚态物质 · 物理学 2017-08-02 K. Endo , H. Katsuragi

The ambipolar electrostatic potential rising along the magnetic field line from the grounded wall to the centre in the linear gas dynamic trap, rules the available suppression of axial heat and particle losses. In this paper, the visible…

等离子体物理 · 物理学 2021-07-07 A. Lizunov

The benefits of thermionic emission from negatively biased electrodes for perpendicular electric field control in a magnetized plasma are examined through its combined effects on the sheath and on the plasma potential variation along…

等离子体物理 · 物理学 2022-02-16 B. Trotabas , R. Gueroult

Plasma accelerators utilize strong electric fields in plasma waves to accelerate charged particles, making them a compact alternative to radiofrequency technologies. Discharge capillaries are plasma sources used in plasma accelerator…

A model of an electron-beam-plasma system is introduced to model the electrical breakdown physics of low-pressure nitrogen irradiated by an intense pulsed electron beam. The rapidly rising beam current induces an electric field which drives…

Continuum kinetic simulations of plasmas, where the distribution function of the species is directly discretized in phase-space, permits fully kinetic simulations without the statistical noise of particle-in-cell methods. Recent advances in…

计算物理 · 物理学 2019-06-18 Petr Cagas , Ammar Hakim , Bhuvana Srinivasan

A detailed simple model is applied to study a high temperature plasma ball. It is assumed that the ions and delocalized electrons are distributed randomly throughout the charged plasma ball (extra/missing charge is assumed to be found in a…

等离子体物理 · 物理学 2007-10-18 Yuri Kornyushin

Two new forms of strongly coupled plasmas will be discussed. They have become possible to create and observe in the laboratory only recently and exhibit a wealth of intriguing complex behavior which can be studied, in many cases for the…

等离子体物理 · 物理学 2009-04-01 Jan Michael Rost

Electric field dynamics at a positive ion imbedded in an electron gas is considered using a semiclassical description. The dependence of the field autocorrelation function on charge number is studied for strong ion-electron coupling via MD…

统计力学 · 物理学 2009-11-07 James Dufty , Ilya Pogorelov , Bernard Talin , Annette Calisti

This paper makes use of a one-dimensional kinetic model to investigate the nonlinear longitudinal dynamics of electron beams generated in the plasma under the influence of a self-generated electric field. It is expressed as where is a wave…

等离子体物理 · 物理学 2016-09-19 N. S. Stepanov , L. A. Zelekson

The expansion dynamics of a finite size plasma is examined from an analytical perspective. Results regarding the charge distribution as well as the electrostatic potential are presented. The acceleration of the ions and the associated…

等离子体物理 · 物理学 2009-11-10 S. Betti , F. Ceccherini , F. Cornolti , F. Pegoraro

Neutral atoms recycled from wall interaction interact with confined plasma, thereby refueling it, most strongly in the region closest to the wall. This occurs near the X-point in diverted configurations, or else near the wall itself in…

等离子体物理 · 物理学 2026-02-11 George J. Wilkie

We calculate analytically the Floquet scattering matrix for a periodically driven double-barrier structure. Our approach takes into account dynamical effects which become necessarily important when electrons propagate through a system…

介观与纳米尺度物理 · 物理学 2008-07-18 M. Moskalets , M. Buttiker

A major obstacle for the understanding of long electrical discharges is the complex dynamics of streamer coronas, formed by many thin conducting filaments. Building macroscopic models for these filaments is one approach to attain a deeper…

等离子体物理 · 物理学 2017-05-10 A. Luque , M. González , F. J. Gordillo-Vázquez