Stochastic motion of grains with charge gradients in external electric fields
Joint Institute for High Temperatures RAS - Izhorskaya st. 13/19, 125412 Moscow, Russia
Received: 24 May 2016
Accepted: 15 July 2016
We consider a theoretical model describing the “anomalous heating” of charged grains due to their stochastic motion in the volume of a spatially inhomogeneous plasma. On the basis of this model for the first time we propose the analytical relations for conditions of the heating of grains due to the gradient of their charge in the electric field of a trap. The obtained relations were tested by numerical simulations of the problem for one and two charged particles.
PACS: 05.20.Dd – Kinetic theory / 52.27.Lw – Dusty or complex plasmas; plasma crystals / 82.70.Dd – Colloids
© EPLA, 2016