Abstract
I will present a Hamiltonian model of a particle coupled to a suitable wave
field, describing the particle's environment, in which a simple version of Ohm's
law is valid. When an external force is applied, the particle reaches
asymptotically a constant speed proportional to the applied field. I will review
the related literature, compare this phenomenon to the one of radiative
dissipation, and indicate some of the many open problems
Contact person:Arne Jensen.