Superoperator perturbation theory for propagators
- 1 July 1983
- journal article
- Published by AIP Publishing in Journal of Mathematical Physics
- Vol. 24 (7) , 1791-1796
- https://doi.org/10.1063/1.525897
Abstract
A well-defined superoperator perturbation theory for propagators is developed, based on equivalence classes of operators, which avoids the ambiguity of approaches based on a degenerate inner product. The Van Vleck formalism provides a natural tool for such a theory when self-consistent propagator approximations are chosen as zeroth-order approximations.Keywords
This publication has 20 references indexed in Scilit:
- Superoperator approach to propagator approximationsInternational Journal of Quantum Chemistry, 1982
- An alternative definition of the electron propagator in the superoperator form and its relation to linear response theory in a coupled-cluster frameworkPramana, 1980
- Self‐consistent approximation to the polarization propagatorInternational Journal of Quantum Chemistry, 1980
- The Role of Algebraic Formulations of Approximate Green's Functions for Systems With a Finite Number of ElectronsPhysica Scripta, 1980
- Foundations of statistical mechanicsReports on Progress in Physics, 1979
- State vectors and propagators in many‐electron theory. A unified approachInternational Journal of Quantum Chemistry, 1977
- The spectrum of the Liouville–von Neumann operatorJournal of Mathematical Physics, 1976
- Molecular and Atomic Applications of Time-Dependent Hartree-Fock TheoryAnnual Review of Physical Chemistry, 1975
- Generalized Perturbation Theory in Operator FormReviews of Modern Physics, 1963
- Ensemble Method in the Theory of IrreversibilityThe Journal of Chemical Physics, 1960