Dust charging processes in the nonequilibrium dusty plasma with nonextensive power-law distribution

作者：Gong Jingyu^*; Du Jiulin

来源：Physics of Plasmas, 2012, 19(2): 023704.

DOI：10.1063/1.3682051

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. The electrons and ions in the plasma obey the power-law distributions and are with q-parameters different from each other. We derive generalized formulae for the dust charging currents in which the nonextensive effects play roles. Further we investigate the dust charging processes taking place in the homogeneous dusty plasma where only the particle velocities are power-law distributions and in the dust cloud plasma where the particle velocities and the particle densities are both power-law distributions. By numerical analyses we show that the nonextensive power-law distributions of electrons and ions have significant effects on the dust charging processes in the nonequilibrium dusty plasma.

• 出版日期2012-2
• 单位天津大学