Abstract
In this section, we want to apply the abstract Green’s function formalism introduced in the last chapter to realistic problems in many-body theory, keeping in mind in particular the model systems from Chap. 2. We want to find out on the one hand just which information can be obtained from suitably chosen Green’s functions, and on the other, to see how such Green’s functions can be calculated in practical cases. We will critically examine the approximations which as a rule must be made in order to make the problems tractable.
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Nolting, W. (2018). Systems of Interacting Particles. In: Theoretical Physics 9. Springer, Cham. https://doi.org/10.1007/978-3-319-98326-4_4
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DOI: https://doi.org/10.1007/978-3-319-98326-4_4
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