Theory of zero‐phonon decay luminescence of semiconductor excitons. Issue 6 (21st September 2016)

• Record Type: Journal Article
• Authors: Koch, Thomas; Semkat, Dirk; Stolz, Heinrich; Fehske, Holger
• Other Names: Keefe Peter D. guestEditor.; Nieuwenhuizen Theo M. guestEditor.; Špička Václav guestEditor.
• Is Part Of: Fortschritte der Physik. Volume 65:Issue 6/7/8(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2016-09-21
• Subjects: Excitons -- Bose–Einstein condensation -- luminescence spectra -- cuprous oxide; Physics -- Periodicals; 530.05
• DOI: 10.1002/prop.201600068
• Languages: English
• ISSNs: 0015-8208

Abstract

Abstract : 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.