Dynamics of Macroparticles in a Quasi-Two-Dimensional Dust–Plasma System under Directed External Action: Simulation Results

The action of the light pressure force on a bounded region of a 2D system of dust macroparticles is simulated using the molecular dynamics method. The dynamics of dust macroparticles in the quasi-2D structure (trajectories of particles, their mean square displacement, and kinetic energy) is analyzed...

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Bibliographic Details
Published in:Journal of experimental and theoretical physics 2020-03, Vol.130 (3), p.477-481
Main Authors: Fairushin, I. I., Petrov, O. F., Vasiliev, M. M.
Format: Article
Language:English
Subjects:
Analysis
Classical and Quantum Gravitation
Dust
Elementary Particles
External pressure
Kinetic energy
Macroparticles
Molecular dynamics
Nonlinear
Parameters
Particle and Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theory
Radiation
Relativity Theory
Self diffusion
Soft Matter Physics
Solid State Physics
Statistical
Subsystems
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Summary:The action of the light pressure force on a bounded region of a 2D system of dust macroparticles is simulated using the molecular dynamics method. The dynamics of dust macroparticles in the quasi-2D structure (trajectories of particles, their mean square displacement, and kinetic energy) is analyzed for various values of the nonideality parameter and laser radiation power. It is shown that by varying the radiation power, it is possible to influence the self-diffusion processes and the value of chaotic velocity of particles. Analysis is performed for different initial values of the nonideality parameter of the unperturbed dust subsystem. It is found that the interparticle interaction results in an increase in the kinetic energy of particles in the region of action, as well as beyond it.
ISSN:1063-7761
1090-6509
DOI:10.1134/S106377612002003X