Diffusion of strongly correlated plasmas in a magnetic field

The self-diffusion properties of dusty plasmas and non-neutral plasmas are of basic importance for a detailed understanding of the dynamics of these systems. In the presence of a magnetic field, the diffusion coefficients for field-parallel and cross- field diffusion need to be investigated separately. We present a molecular dynamics study of a one-component plasma which is both strongly coupled ($ \Gamma>1$) and subjected to a strong magnetic field ($\omega_c/ \omega_p>1$). As in a weakly coupled plasma, the cross-field diffusion scales as $1/B$ in the strong-field limit. The field-parallel diffusion is also strongly affected by the magnetic field and approaches a $1/B$ scaling, in contrast to earlier predictions. \\[1ex] [1] T. Ott, M. Bonitz, arXiv:1106.3717 [physics.plasm-ph]