Feynman-Goldstone diagrams in a time-dependent basis
- 1 March 1984
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 29 (3), 1005-1009
- https://doi.org/10.1103/physrevc.29.1005
Abstract
A generalization of many-fermion Feynman-Goldstone diagrams is derived based on a time-dependent unperturbed Hamiltonian along with a time-dependent reference state. In lowest order, the time-dependent Hartree-Fock equations follow immediately from the same arguments which lead to static Hartree-Fock when the basis is time independent. Systematic corrections to the time-dependent Hartree-Fock mean-field approximation are obtained through higher order diagrams.Keywords
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