Plans for week 43, October 24-28_澳门葡京手机版app下载

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2025-11-19T07:24:49.350Z
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Dear all, the aim this week is to get started with many-body perturbation theory, starting with a time-independent derivation and thereafter moving to a diagrammatic representation and time-dependent perturbation theory. We start on Thursday by linking FCI theory and Hartree-Fock with many-body perturbation theory by reminder ourselves about Thouless' theorem. The exercise this week is (perhaps) a final word on the Lipkin model with applications of Hartree-Fock theory to the model plus a discussion of the stability of the Hartree-Fock method in terms of the interaction strength parameters.

The plan for the week is as follows:

* Topics to be covered

o Thursday:

* Linking FCI and Hartree-Fock theory with many-body perturbation theory

* Time-independent perturbation theory

o Friday:

* Time-dependent perturbation theory and diagra...