Momentum transfer in non-equilibrium steady states

Antoine Fruleux, Ryoichi Kawai, Ken Sekimoto

Published 2011-09-29, updated 2012-02-13Version 2

When a Brownian object interacts with non-interacting gas particles under non-equilibrium conditions, the energy dissipation associated to the Brownian motion causes an additional force on the object as a `momentum transfer deficit'. This principle is demonstrated first by a new NESS model and then applied to several known models such as adiabatic piston for which simple explanation has been lacking.