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EnglishWe present a microscopic theory of parametric polariton amplification in semiconductor microcavities including the influence of exciton-exciton correlations beyond mean-field. The complexity induced by the Coulomb interaction between electrons determines the noninstantaneous character of exciton-exciton collisions. We find that the observed great enhancement of gain when increasing the polariton splitting origins from the unique interplay of the noninstantaneous nature of exciton-exciton interactions with the strong coupling regime giving rise to polaritons
http://hdl.handle.net/11570/1587434| Titolo: | The influence of four-particle correlations on the parametric polariton amplification |
| Autori interni: | SAVASTA, Salvatore DI STEFANO, Omar GIRLANDA, Raffaello |
| Data di pubblicazione: | 2003 |
| Rivista: | PHYSICA STATUS SOLIDI B-BASIC RESEARCH |
| Abstract: | We present a microscopic theory of parametric polariton amplification in semiconductor microcavities including the influence of exciton-exciton correlations beyond mean-field. The complexity induced by the Coulomb interaction between electrons determines the noninstantaneous character of exciton-exciton collisions. We find that the observed great enhancement of gain when increasing the polariton splitting origins from the unique interplay of the noninstantaneous nature of exciton-exciton interactions with the strong coupling regime giving rise to polaritons |
| Handle: | http://hdl.handle.net/11570/1587434 |
| Appare nelle tipologie: | 14.a.2 Proceedings in extenso su rivista |
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