Nonequilibrium Two‐Particle Dyson Equation
Th. Bornath, M. Schlanges, D. Kremp
Abstract The two‐particle problem within a nonequilibrium many‐particle system is investigated in the framework of real‐time Green's functions. A nonequilibrium Dyson equation is given for the two‐time two‐particle Green's function. The two‐particle self‐energy in this equation consists of two qualitatively different parts: one part is local in time, whereas the other part is a two‐time quantity having thus a dynamical character. The latter part of the self‐energy can be expressed in terms of multi‐particle Green's functions.
Contributions to Plasma Physics•Jan 1, 1999•1 citation