Self-diffusion in two-dimensional quasi-magnetized rotating dusty plasmas

Abstract

The self-diffusion phenomenon in a two-dimensional dusty plasma at extremely strong (effective) magnetic fields is studied experimentally and by means of molecular dynamics simulations. In the experiment the high magnetic field is introduced by rotating the particle cloud and observing the particle trajectories in a co-rotating frame, which allows reaching effective magnetic fields up to 3000 Tesla. The experimental results confirm the predictions of the simulations: (i) super-diffusive behavior is found at intermediate time-scales and (ii) the dependence of the self-diffusion coefficient on the magnetic field is well reproduced.

arXiv commentaccepted by Physical Review E

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• Fickian yet non-Gaussian diffusion in two-dimensional Yukawa liquids
• Ring structural transitions in strongly coupled dusty plasmas
• Extended space and time correlations in strongly magnetized plasmas
• Experiment and model for a Stokes layer in a strongly coupled dusty plasma
• The Dance of Odd-Diffusive Particles: A Fourier Approach
• dc electrical conductivity in strongly magnetized plasmas
• Identification of time scales of the violation of the Stokes-Einstein relation in Yukawa liquids
• Observation of fast sound in two-dimensional dusty plasma liquids
• Shear Viscosity in Two-Dimensional Dipole Systems
• Tailoring the escape rate of a Brownian particle by combining a vortex flow with a magnetic field
• Self-Diffusion and Structure of a Quasi Two-Dimensional, Classical Coulomb Gas Under Increasing Magnetic Field and Temperature
• Brownian magneto-gyrator as a tunable microengine