Solution of the inverse Langevin problem for open dissipative systems with anisotropic interparticle interaction

Лисин, Е. А.; Lisina, I. I.; Ваулина, О. С.; Петров, О. Ф.

doi:10.1063/1.4916101

Cited by 8 publications

(3 citation statements)

References 48 publications

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“…[39], T d < 0.8 eV; in Ref. [40], the dust temperature was found to be in the range from 0.1 to 1 eV. Thus, T d /T n ∼ 30, where T n is the temperature of gas molecules usually assumed to be equal to room temperature.…”

Section: Introductionmentioning

confidence: 99%

Dust acoustic waves in three-dimensional complex plasmas with a similarity property

Zhukhovitskii

2015

Phys. Rev. E

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Dust acoustic waves in the bulk of a dust cloud in complex plasma of low-pressure gas discharge under microgravity conditions are considered. The complex plasma is assumed to conform to the ionization equation of state (IEOS) developed in our previous study. This equation implies the ionization similarity of plasmas. We find singular points of IEOS that determine the behavior of the sound velocity in different regions of the cloud. The fluid approach is utilized to deduce the wave equation that includes the neutral drag term. It is shown that the sound velocity is fully defined by the particle compressibility, which is calculated on the basis of the used IEOS. The sound velocities and damping rates calculated for different three-dimensional complex plasmas both in ac and dc discharges demonstrate a good correlation with experimental data that are within the limits of validity of the theory. The theory provides interpretation for the observed independence of the sound velocity on the coordinate and for a weak dependence on the particle diameter and gas pressure. Predictive estimates are made for the ongoing PK-4 experiment.

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Section: Introductionmentioning

confidence: 99%

Dust acoustic waves in three-dimensional complex plasmas with a similarity property

Zhukhovitskii

2015

Phys. Rev. E

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“…Streaming of ions relative to the inert highly charged dust particle (or external electric field) leads to plasma (or dust particle) polarization, which manifests in the deviation of inter‐dust particle interaction potential from the Yukawa potential . This polarization effect can lead to an additional screened dipole–dipole type interaction . However, in order to experimentally verify this assumption, first of all, the possible changes in the physical properties of a system due to the additional screened dipole–dipole interaction must be addressed theoretically.…”

Section: Introductionmentioning

confidence: 99%

Sound speed and diffusion in 2D Yukawa liquids: Effect of dipole–dipole interaction

Gabdulin

Рамазанов²,

Moldabekov

2017

Contrib. Plasma Phys

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The two‐dimensional (2D) Yukawa liquid with an additional screened dipole–dipole interaction is considered in connection with the 2D system of charged dust particles in complex plasmas. Particularly, the sound speed and diffusion in the case the Yukawa interaction potential dominant over the screened dipole–dipole interaction are analysed. Increase in the value of the sound speed and suppression of the super‐diffusion due to the additional dipole–dipole interaction are reported. This effect is explained by the stronger inter‐particle correlations induced by the additional dipole–dipole interaction.

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“…A laboratory complex plasma [8][9][10] is a good experimental model for studying nonreciprocal processes on the kinetic level, since 3D particle trajectories and profiles of anisotropic interparticle interaction forces can be easily determined [11,12]. Dust chains consisting of several tens of dust particles (grains) may be formed in experiments with inductive RF discharge plasma and DC glow discharge plasma [13,14].…”

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confidence: 99%

Kinetic energy in a system of particles with a nonreciprocal interaction

Ваулина

Lisina

Лисин

2015

EPL

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We present a theoretical model for the description of the heating mechanism and the redistribution of kinetic energy in a system of particles with nonreciprocal interactions that occur in disperse systems of different nature. To verify the theory, we carried out the numerical simulations of two-particle systems with a nonreciprocal “quasi-dipole–dipole” interaction that is similar to the interaction due to the effect of ion focusing in a laboratory complex plasma under experimental conditions. The proposed model of heating can explain various features of dust dynamics in anisotropic complex plasma.

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Solution of the inverse Langevin problem for open dissipative systems with anisotropic interparticle interaction

Cited by 8 publications

References 48 publications

Dust acoustic waves in three-dimensional complex plasmas with a similarity property

Dust acoustic waves in three-dimensional complex plasmas with a similarity property

Sound speed and diffusion in 2D Yukawa liquids: Effect of dipole–dipole interaction

Kinetic energy in a system of particles with a nonreciprocal interaction

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