Introduction. Generalized Green's functions. Equations of motion for the generalized single-particle Green's function. Bethe-Salpeter equation for the two-particle Green's function. Connection with linear-response theory. Conserving approximations. Gauge invariance, current conservation, and the Ward identities. Optical properties of semiconductors. Single-particle energy levels. Screening of static impurities. Excitonic states.
Application of the Green's functions method to the study of the optical properties of semiconductors
STRINATI CALVANESE, Giancarlo
1988-01-01
Abstract
Introduction. Generalized Green's functions. Equations of motion for the generalized single-particle Green's function. Bethe-Salpeter equation for the two-particle Green's function. Connection with linear-response theory. Conserving approximations. Gauge invariance, current conservation, and the Ward identities. Optical properties of semiconductors. Single-particle energy levels. Screening of static impurities. Excitonic states.File in questo prodotto:
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