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We analytically study plasma solitary waves, or solitons, in a two-dimensional (2D) electron system (ES) placed in close proximity to and between two ideal metallic gates. As a rule, solitons are described using a perturbative approach…

介观与纳米尺度物理 · 物理学 2022-05-20 A. A. Zabolotnykh

This work presents a multidisciplinary mathematical model, as a set of coupled governing equations and auxiliary relations describing the fluid-flow, thermal, and electric fields of partially-ionized plasma with low magnetic Reynolds…

等离子体物理 · 物理学 2024-11-01 Osama A. Marzouk

Electromagnetic (EM) waves/disturbances are typically the best means to understand and analyze an ionized medium like plasma. However, the propagation of electromagnetic waves with frequency lower than the plasma frequency is prohibited by…

等离子体物理 · 物理学 2020-02-25 Sharad Kumar Yadav , Ratan Kumar Bera , Deepa Verma , Amita Das , Predhiman Kaw

Electron-beam plasma interaction has long been a topic of great interest. Despite the success of Quasi-Linear (QL) theory and Weak Turbulence (WT) theory, their validities are limited by the requirement of sufficiently dense mode spectrum…

等离子体物理 · 物理学 2022-10-05 Haomin Sun , Jian Chen , Igor D. Kaganovich , Alexander Khrabrov , Dmytro Sydorenko

We report the observation of plasma oscillations in an ultracold neutral plasma. With this collective mode we probe the electron density distribution and study the expansion of the plasma as a function of time. For classical plasma…

等离子体物理 · 物理学 2009-11-06 S. Kulin , T. C. Killian , S. D. Bergeson , S. L. Rolston

The multi-species plasma of natural or laboratory origin is often considered to host nonlinear ion-acoustic waves. We present calculations of ion fluxes induced by nonlinear ion-acoustic waves in a plasma consisting of multiple ion…

等离子体物理 · 物理学 2021-08-25 A. E. Dubinov , I. N. Kitayev , D. Y. Kolotkov

The nonlinear propagation of small amplitude ion acoustic solitary wave in relativistic degenerate magneto plasma in presence of ion beam is investigated in detail. The nonlinear equations describing the evolution of solitary wave in…

等离子体物理 · 物理学 2018-01-09 M. K. Deka , A. N. Dev , A. P. Misra , N. C. Adhikary

Alfv\'en waves are a particular class of magnetohydrodynamic waves relevant in many astrophysical and laboratory plasmas. In partially ionized plasmas the dynamics of Alfv\'en waves is affected by the interaction between ionized and neutral…

太阳与恒星天体物理 · 物理学 2015-06-15 R. Soler , M. Carbonell , J. L. Ballester , J. Terradas

We describe an algorithm that computes the linear dispersion relation of waves and instabilities in relativistic plasmas within a Vlasov-Maxwell description. The method used is fully relativistic and involves explicit integration of…

天体物理学 · 物理学 2009-11-13 J Petri , J G Kirk

We study the two component Fermi plasma. Two components are electrons and ions. Using the Quantum-Hydrodynamic model (QHD), we study the linear properties of electrostatic wave. We derive the linear dispersion relation for the system from…

等离子体物理 · 物理学 2021-01-05 Shraddha Sahana , Spandita Mitra , Swarniv Chandra , Suman Pramanick

Linearly polarized solitary waves, arising from the interaction of an intense laser pulse with a plasma, are investigated. New localized structures, in the form of exact \Changes{numerical} nonlinear solutions of the one-dimensional…

等离子体物理 · 物理学 2015-03-11 G. Sánchez-Arriaga , E. Siminos , V. Saxena , I. Kourakis

By means of a particle-in-cell (PIC) simulation, we study the interaction between a uniform magnetized ambient electron-proton plasma at rest and an unmagnetized pair plasma, which we inject at one simulation boundary with a mildly…

高能天体物理现象 · 物理学 2024-06-19 M E Dieckmann , D Folini , R Walder , A Charlet , A Marcowith

Positive and negative ions forming so-called pair plasma differing in sign of their charge and asymmetric in mass and temperature support a new electrostatic mode. Bernstein mode for a pair ions and pair ions with contribution of electrons…

等离子体物理 · 物理学 2018-04-26 Waseem Khan , Zahida Ehsan , Muddasir Ali

We present a derivation of the dispersion relation for electrostatic oscillations (ESOs) in a zero temperature quantum plasma. In the latter, degenerate electrons are governed by the Wigner equation, while non-degenerate ions follow the…

等离子体物理 · 物理学 2009-11-25 Bengt Eliasson , Padma K. Shukla

A criterion to define a pure pair-ion (PI) plasma is presented. It is suggested that the lighter elements (like H and He) are more suitable to produce PI plasmas. The observation of ion acoustic wave (IAW) in recent experiments with…

等离子体物理 · 物理学 2011-06-09 Hamid Saleem

It is shown that the anomalous resistivity, thermal conductivity, and magnetic pressure of hot plasmas can be explained by the assumption that the collisional electron-ion cross-section becomes constant above some critical temperature. This…

等离子体物理 · 物理学 2007-05-23 Fedor V. Prigara

The fundamental dispersion relation of transverse electro-magnetic waves in a cold collisionless plasma is formally equivalent to the two dimensional dispersion relation of inertio-gravity waves in a rotating shallow water system, where the…

等离子体物理 · 物理学 2022-08-17 Eyal Heifetz , Leo R. M. Maas , Julian Mak , Ishay Pomerantz

We develop a general theory of buoyancy instabilities in the electron-ion plasma with the electron heat flux based not upon MHD equations, but using a multicomponent plasma approach in which the momentum equation is solved for each species.…

星系天体物理 · 物理学 2015-05-20 Anatoly K. Nekrasov , Mohsen Shadmehri

Scaling laws for the transport and heating of trace heavy ions in low-frequency, magnetized plasma turbulence are derived and compared with direct numerical simulations. The predicted dependences of turbulent fluxes and heating on ion…

等离子体物理 · 物理学 2015-06-05 M. Barnes , F. I. Parra , W. Dorland

We investigate suprathermal ion dynamics in simple magnetized toroidal plasmas in the pres- ence of electrostatic turbulence driven by the ideal interchange instability. Turbulent fields from fluid simulations are used in the…

等离子体物理 · 物理学 2015-06-03 K. Gustafson , P. Ricci , I. Furno , A. Fasoli