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Elementary Green Function Theory

We introduce the elementary theory of Green functions following Raines by looking for the solution of a simple inhomogeneous differential equation. That is, we do not introduce second quantization and diagrammatic techniques (as more sophisticated treatments of Green functions do at this point). [Pg.109]

In this section we first review briefly the formal connection between properties of the one- and two-particle Green s function and elementary excitations. Determining the partition function we then work out interrelations between the Kohn-Sham equation of density-functional theory and the general many-body perturbation theory for the exact exchange-correlation energy. [Pg.116]

The importance of Green s functions in electromagnetic theory is dictated by the following considerations. According to the basic property of -function (8.124), any source, j (r ), can be represented as a sum of elementary current sources ... [Pg.224]

See other pages where Elementary Green Function Theory is mentioned: [Pg.109]    [Pg.111]    [Pg.113]    [Pg.115]    [Pg.109]    [Pg.111]    [Pg.113]    [Pg.115]    [Pg.11]    [Pg.402]    [Pg.396]    [Pg.171]    [Pg.298]    [Pg.46]   


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