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相关论文: Electron parallel closures for arbitrary collision…

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We investigate the dynamics of plasma-based acceleration processes with collisionless particle dynamics and non negligible thermal effects. We aim at assessing the applicability of fluid-like models, obtained by suitable closure assumptions…

等离子体物理 · 物理学 2024-09-17 Daniele Simeoni , Andrea Renato Rossi , Gianmarco Parise , Fabio Guglietta , Mauro Sbragaglia

Simulation results are presented to demonstrate electron temperature and electrical potential development in dilute and cold plasma development. The simulation method is a hybrid method which adopted fluid model for electrons due to their…

等离子体物理 · 物理学 2024-09-13 Shiying Cai , Chunpei Cai , Zhen Zhang

As proved by previous study, the similarity of electromagnetic processes in plasmas will be violated by Coulomb collisions between electron and ions. Therefore, there is no similarity in highly ionized collisional plasma. But the situation…

等离子体物理 · 物理学 2022-01-26 Jiansheng Yao , Yingkui Zhao , Hantian Zhang , Difa Ye , Biyao Ouyang

A 14-moment maximum-entropy system of equations is applied to the description of non-equilibrium electrons in crossed electric and magnetic fields and in the presence of low collisionality, characteristic of low-temperature plasma devices.…

等离子体物理 · 物理学 2021-03-29 Stefano Boccelli , Fabien Giroux , Thierry E. Magin , Clinton P. T. Groth , James G. McDonald

A novel method aimed at a kinetic moments closure for a magnetized plasma with arbitrary collisionality is proposed. The intended first application is to a tokamak edge and scrape-off-layer plasma. The velocity distribution function for…

等离子体物理 · 物理学 2019-01-09 R. E. Waltz , F. D. Halpern , Z. Deng , J. Candy

The closed integral equations for the interfacial tension as a function of external polarization at the liquid metal - ionic melt interface are derived. The version of Popel'-Pavlov isotherm is applied to the analysis of electrocapillary…

化学物理 · 物理学 2007-05-23 Oleg A. Kobelev , Alexandr V. Kobelev

The elastic response of an electron fluid at finite frequencies is defined by the electron viscosity $\eta(\omega)$. We determine $\eta(\omega)$ for graphene at the charge neutrality point in the collisionless regime, including the leading…

强关联电子 · 物理学 2018-11-06 Julia M. Link , Daniel E. Sheehy , Boris N. Narozhny , Jörg Schmalian

Electric, thermal and thermoelectric transport in correlated electron systems probe different aspects of the many-body dynamics, and thus provide complementary information. These are well studied in the low- and high-temperature limits,…

强关联电子 · 物理学 2020-02-19 Woo-Ram Lee , Alexander M. Finkel'stein , Karen Michaeli , Georg Schwiete

We compute the real and imaginary parts of the electric permittivities and magnetic permeabilities for relativistic electrons from quantum electrodynamics at finite temperature and density. A semiclassical approximation establishes the…

量子物理 · 物理学 2018-03-14 C. A. A. de Carvalho

The ion-electron coupling properties for a ion impurity in an electron gas and for a two component plasma are carried out on the basis of a regularized electron-ion potential removing the short-range Coulomb divergence. This work is largely…

统计力学 · 物理学 2009-11-07 B Talin , E Dufour , A Calisti , M A Gigosos , M A Gonzalez , T del Rio Gaztelurrutia , J Dufty

Most treatments of electron-electron correlations in dense plasmas either ignore them entirely (random phase approximation) or neglect the role of ions (jellium approximation). In this work, we go beyond both these approximations to derive…

等离子体物理 · 物理学 2020-02-05 Nathaniel R. Shaffer , Charles E. Starrett

An overview of quantum-mechanical methods to generate cross-section data for electron collisions with atoms and molecules is presented. Particular emphasis is placed on the time-independent close-coupling approach, since it is particularly…

等离子体物理 · 物理学 2016-10-21 Klaus Bartschat , Jonathan Tennyson , Oleg Zatsarinny

The quasilinear intrinsic parallel flow drive including parallel residual stress, kinetic stress, cross Maxwell stress and parallel turbulent acceleration by electromagnetic ion temperature gradient (ITG) turbulence is calculated…

等离子体物理 · 物理学 2017-01-04 Shuitao Peng , Lu Wang , Yuan Pan

Electron bulk energization in the diffusion region during anti-parallel symmetric reconnection entails two stages. First, the inflowing electrons are adiabatically trapped and energized by an ambipolar parallel electric field. Next, the…

等离子体物理 · 物理学 2016-10-14 Ari Le , Jan Egedal , William Daughton

Combining a generalized current in the set of Maxwell's equations offers a useful framework to address the complex phenomena of electromagnetic turbulence. The fluidic-electromagnetic analogy implies that diffraction is the analog…

经典物理 · 物理学 2022-02-15 Mario J. Pinheiro

Hot-cold ablative mixing plasmas are ubiquitous in astrophysical and laboratory systems, where a cold/dense plasma is roughly in pressure balance with a hot/dilute plasma. Examples include the plasma thermal quench during major disruptions…

等离子体物理 · 物理学 2025-04-01 Yanzeng Zhang , Xian-Zhu Tang

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

Molecular adsorbates on metal surfaces exchange energy with substrate phonons and low-lying electron-hole pair excitations. In the limit of weak coupling, electron-hole pair excitations can be seen as exerting frictional forces on…

材料科学 · 物理学 2016-09-28 Reinhard J. Maurer , Mikhail Askerka , Victor S. Batista , John C. Tully

In the present paper, we propose a variational average-atom model of electron-ion plasma performing a quantum treatment of bound electrons and accounting for correlations (VAAQBEC). This model addresses the correlation functions in a…

等离子体物理 · 物理学 2019-05-01 R. Piron , T. Blenski

The performance of several common approximations for the exchange-correlation kernel within time-dependent density-functional theory is tested for elementary excitations in the homogeneous electron gas. Although the adiabatic local-density…

材料科学 · 物理学 2007-05-23 Krzysztof Tatarczyk , Arno Schindlmayr , Matthias Scheffler