Quantum dynamics can be reproduced well using classical dynamics of a cloud of particles reproducing the Wigner density of the initial wave function of a single electron. This indicates that uncertainty is the dominant quantum effect in electron scattering at protons. A comparison of results and computational run times is presented.

In electron dynamics in a proton plasma, close encounters in an attractive Coulomb potential are problematic, due to a divergent one-over-r2 force. An easy to implement, efficient method to deal with this is presented and its results discussed. This method will be useful for a wide range of problems, including molecular dynamics (MD) and celestial mechanics.

A comparison with results from our collaborators at LANL is presented. In conclusion, the Yale-LANL collaboration has a hierarchy of methods at its disposal for different physical regimes. Ideas for on-going development of these methods will be discussed.

Host: Michael Murillo, CCS-2