  The method of molecular dynamics is used to study behavior of a ultracold
non-ideal ion-electron Be plasma in a uniform magnetic field. Our simulations
yield an estimate for the rate of electron-ion collisions which is
non-monotonicallydependent on the magnetic field magnitude. Also they
explicitly show that there are two types of diffusion: classical one,
corresponding to Brownian motion of particles, and Bohm diffusion when the
trajectory of particles (guiding centers) includes substantial lengths of drift
motion.
