The Nature of Irreversibility

摘要

A set of reversible equations for the first distributionnfunction and g, the correlation function are derived for the weaknforce case. The forward motion , i.e., development in time fromnuncorrelated initial conditions, and the corresponding reverse motion are examined. In the "forward motion the equation for evolves into the Fokker-Planck equation while in the corresponding reverse motion is described by an anti Fokker-Planck equation.