|NOM DE FICHIER||The Boltzmann Equation and Its Applications.pdf|
|TAILLE DU FICHIER||5,43 MB|
|DATE DE PUBLICATION||2012-Oct-28|
Statistical mechanics may be naturally divided into two branches, one dealing with equilibrium systems, the other with nonequilibrium systems. The equilibrium properties of macroscopic systems are defined in principle by suitable averages in well-defined Gibbs's ensembles. This provides a frame work for both qualitative understanding and quantitative approximations to equilibrium behaviour.
However, for a wide class of applications a well-defined generalization of f exists which is the solution of an effective Boltzmann equation that can be derived from first principles of quantum field theory. General relativity and astronomy. The Boltzmann equation is of use in galactic dynamics.