Single and two particle properties in a dense plasma are discussed in connection with their role in the mass action law for a partially ionized plasma. The two particle bound states are nearly density independent, while the continuum is essentially shifted. The single particle states are damped, and
Nonequilibrium Two-Particle Dyson Equation
β Scribed by Th. Bornath; M. Schlanges; D. Kremp
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 249 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0005-8025
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β¦ Synopsis
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.
π SIMILAR VOLUMES
Using functional derivatives with respect to free propagators and interactions we derive a closed set of Schwinger-Dyson equations in quantum electrodynamics. Its conversion to graphical recursion relations allows us to systematically generate all connected and one-particle irreducible Feynman diagr