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Theory of zero‐phonon decay luminescence of semiconductor excitons
Author(s) -
Koch Thomas,
Semkat Dirk,
Stolz Heinrich,
Fehske Holger
Publication year - 2017
Publication title -
fortschritte der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/prop.201600068
Subject(s) - quasiparticle , exciton , phonon , luminescence , coherence (philosophical gambling strategy) , physics , photon , condensed matter physics , semiconductor , biexciton , field (mathematics) , zero (linguistics) , quantum mechanics , atomic physics , superconductivity , optoelectronics , mathematics , pure mathematics , linguistics , philosophy
We present a theoretical approach to the zero‐phonon decay luminescence of excitons. In a two‐step approach, the weakly interacting condensed exciton gas is Bogolyubov transformed before the resulting quasiparticles are coupled to the photon field. The field–field correlation function, which gives the luminescence intensity and first‐order coherence, is calculated in the framework of real‐time Green's functions of the photons. The resulting spectrum of the new, so‐called bogolariton, quasiparticles is discussed.