Abstract
The derivation of non-Markovian quantum kinetic equations is reconsidered in the framework of density operators. Conventional derivations use for the decoupling of the BBGKY-hierarchy the assumption of vanishing three-particle correlations g123 = 0. This yields non-Markovian kinetic equations with infinite memory depth. We discuss a different closure relation to the hierarchy, which overcomes this difficulty without assumptions on weakening of initial correlations and in fact corresponds to the inclusion of selfenergy effects (beyond Hartree-Fock).
Original language | English (US) |
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Pages (from-to) | 101-113 |
Number of pages | 13 |
Journal | Contributions to Plasma Physics |
Volume | 37 |
Issue number | 2-3 |
DOIs | |
State | Published - 1997 |
ASJC Scopus subject areas
- Condensed Matter Physics