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The thermal motion of a dust particle levitated in a plasma chamber is similar to that described by Brownian motion in many ways. The primary differences between a dust particle in a plasma system and a free Brownian particle is that in…

等离子体物理 · 物理学 2016-10-05 Jie Kong , Ke Qiao , Lorin S. Matthews , Truell W. Hyde

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

In the presence of gravity, the micron-sized charged dust particles in a complex (dusty) plasma are compressed into thin layers. However, under the microgravity conditions of the Plasma Kristall-4 (PK-4) experiment on the International…

The dust charging processes in the collections of electrons and ions in the nonequilibrium dusty plasma with power-law distributions are investigated on the basic of a new q-distribution function theory in nonextensive statistics. Electrons…

等离子体物理 · 物理学 2015-08-10 Jingyu Gong , Jiulin Du

A precise theoretical investigation has been made on dust-acoustic (DA) waves (DAWs) in a four components dusty plasma medium having inertial warm adiabatic dust grains and inertialess $q$-distributed electrons as well as isothermal ions…

等离子体物理 · 物理学 2019-10-08 M. H. Rahman , N. A. Chowdhury , A. Mannan , A. A. Mamun

The control of the spatial distribution of micrometer-sized dust particles in capacitively coupled radio frequency discharges is relevant for research and applications. Typically, dust particles in plasmas form a layer located at the sheath…

A scheme which allows to compute the dynamics of strongly correlated classical ions embedded into a partiallzy ionized quantum plasma by first principles molecular dynamics is presented. The dynamically screened dust approach of Joyce and…

等离子体物理 · 物理学 2008-10-10 M. Bonitz , P. Ludwig , J. W. Dufty

The properties of electrostatic transverse shear waves propagating in a strongly coupled dusty plasma with an equilibrium density gradient are examined using the generalized hydrodynamic equation. In the usual kinetic limit, the resulting…

等离子体物理 · 物理学 2015-06-17 M. S Janaki , D. Banerjee , N. Chakrabarti

The static and time-dependent potential and surface charge correlations in a plasma with a boundary are computed for different shapes of the boundary. The case of a spheroidal or spherical one-component plasma is studied in detail because…

凝聚态物理 · 物理学 2009-10-28 G. Tellez

The nonlinear propagation of dust-acoustic (DA) waves (DAWs) and associated DA rogue waves (DARWs), which are governed by the nonlinear Schr\"{o}dinger equation, is theoretically investigated in a four component plasma medium containing…

等离子体物理 · 物理学 2020-04-22 S. K. Paul , N. A. Chowdhury , A. Mannan , A. A. Mamun

The interaction between dust grains is an important process in fields as diverse as planetesimal formation or the plasma processing of silicon wafers into computer chips. This interaction depends in large part on the material properties of…

等离子体物理 · 物理学 2015-05-18 Jonathan Perry , Lorin Matthews , Truell Hyde

A two-dimensional dust crystal levitated in the sheath of a modified Gaseous Electronics Conference (GEC) reference cell is manipulated by heating or cooling the lower electrode. The dust charge is obtained from top-view pictures of the…

等离子体物理 · 物理学 2010-10-20 Victor Land , Bernard Smith , Lorin Matthews , Truell Hyde

We consider the acceleration of very small dust grains including Polycyclic Aromatic Hydrocarbons (PAHs) arising from the electrostatic interactions of dust grains that have charge fluctuations in time due to charging events. We simulate…

星系天体物理 · 物理学 2015-06-03 Thiem Hoang , A. Lazarian

Dust grains play a major role in many astrophysical contexts. They affect the chemical, magnetic, dynamical, and optical properties of their environment, from galaxies down to the interstellar medium, star-forming regions, and…

星系天体物理 · 物理学 2021-05-18 Pierre Marchand , Vincent Guillet , Ugo Lebreuilly , Mordecai-Mark Mac Low

The dust-acoustic waves and their stability in the permeating dusty plasma with the Maxwellian velocity distribution are investigated. We derive the dust-acoustic wave frequency and instability growth rate in two limiting physical cases…

等离子体物理 · 物理学 2015-08-10 Jingyu Gong , Zhipeng Liu , Jiulin Du

We describe a new implementation of the one-fluid method in the SPH code Phantom to simulate the dynamics of dust grains in gas protoplanetary discs. We revise and extend previously developed algorithms by computing the evolution of a new…

We study the dynamics of a particle in continuous time and space, the displacement of which is governed by an internal degree of freedom (spin). In one definite limit, the so-called quantum random walk is recovered but, although quite…

量子物理 · 物理学 2009-11-10 Claude Aslangul

In this paper, the collective dynamics of the large aspect ratio dusty plasma is studied over a wide range of discharge parameters. An inductively coupled diffused plasma, which creates an electrostatic trap to confine the negatively…

等离子体物理 · 物理学 2018-03-14 Mangilal Choudhary , S. Mukherjee , P. Bandyopadhyay

A variety of experimental techniques for the generation of subsonic/supersonic dust fluid flows and means of measuring such flow velocities are presented. The experiments have been carried out in a $\Pi-$shaped Dusty Plasma Experimental…

等离子体物理 · 物理学 2016-11-23 S. Jaiswal , P. Bandyopadhyay , A. Sen

A standard nonlinear Schr\"{o}dinger equation has been established by using the reductive perturbation method to investigate the propagation of electrostatic dust-acoustic waves, and their modulational instability as well as the formation…

等离子体物理 · 物理学 2020-08-25 R. K. Shikha , N. A. Chowdhury , A. Mannan , A. A. Mamun