Mobility in a strongly coupled dusty plasma with gas

Abstract

The mobility of a charged projectile in a strongly coupled dusty plasma is simulated. A net force $F$, opposed by a combination of collisional scattering and gas friction, causes projectiles to drift at a mobility-limited velocity $u_p$. The mobility ${\mu }_p=u_p/F$ of the projectile's motion is obtained. Two regimes depending on $F$ are identified. In the high force regime, ${\mu }_p\propto F^{0.23}$, and the scattering cross section ${\sigma }_s$ diminishes as $u_p^{-6/5}$. Results for ${\sigma }_s$ are compared with those for a weakly coupled plasma and for two-body collisions in a Yukawa potential. The simulation parameters are based on microgravity plasma experiments.

References in corpus (4)

• Accurate particle position measurement from images
• Dynamics of lane formation in driven binary complex plasmas
• Phase separation in the crust of accreting neutron stars
• Velocity Relaxation in a Strongly Coupled Plasma

Cited by in corpus (2)

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