Newtonian mechanics of a manyparticle assembly coupled to an external body potential
Abstract
The Newtonian mechanics of a manyparticle system evolving in time under the influence of an external body potential, that is, an external potential that couples to the center of mass only, is examined. The lack of any other external fields allows the complete separation of the centerofmass (or externalfielddependent) equations from the internal (or externalfieldindependent) dynamics. The complete solution of the centerofmass motion then allows an analytical evaluation of the external body potential contributions to the thermophysical properties of the system. The phenomena of fieldinduced heating, TaylorAris hydrodynamic form for the diffusion tensor, and an analogous hydrodynamic form for the viscosity tensor are derived from microscopic principles. A brief and modeldependent description of equilibrium phenomena is also presented.
 Publication:

Physical Review A
 Pub Date:
 December 1990
 DOI:
 10.1103/PhysRevA.42.7236
 Bibcode:
 1990PhRvA..42.7236S
 Keywords:

 Center Of Mass;
 Newtonian Fluids;
 Particle Motion;
 Thermophysical Properties;
 Analytic Functions;
 Dynamical Systems;
 Equations Of Motion;
 Nonequilibrium Conditions;
 Thermodynamics and Statistical Physics;
 03.20.+i;
 05.20.y;
 61.20.Ja;
 Classical statistical mechanics;
 Computer simulation of liquid structure