Summary
The self-energies of the electrons and holes in an electron-hole liquid are calculated. A modified random-phase approximation is used. The many-body mass renormalizations are found to be small (≈10%) and there is no appreciable renormalization of the band structure anisotropies. The individual self-energies of electrons and holes are almost equal.
Riassunto
Si calcolano le autoenergie di elettroni e buche in un liquido di elettroni e buche con una RPA modificata. La rinormalizzazione di massa dovuta ad effetti a molti corpi è piccola (∼10%) è la rinormalizzazione delle anisotropie di struttura a bande è trascurabile. Le autoenergie individuali di elettroni e buche sono quasi uguali.
Резюме
Вычисляются собственные энергии электронов и дыров в электрондыирочной жидкости. Исользуется модифицированное приближение случайных фаз. Получается, что многочастичная перенормировка массы является малой величниой (∼10%), и перенрмировка анизотропии зонной структуры оказывается незначительной. Собственне энергии электронов и дырок почи равны.
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Paper presented at theConference on Perspectives for the Calculation of Many-Electron Interactions (Cecam Colloquium), Taormina, 17–21 Settembre 1973.
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Rice, T.M. Quasi-particle properties in an electron-hole liquid. Nuov Cim B 23, 226–233 (1974). https://doi.org/10.1007/BF02737506
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DOI: https://doi.org/10.1007/BF02737506