Regensburg 2016 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

HL: Fachverband Halbleiterphysik

HL 53: Poster II

HL 53.20: Poster

Mittwoch, 9. März 2016, 09:30–13:30, Poster A

Spatio-temporal propagation of nonclassical light in a coupled quantum dot-waveguide system — •Kilian Kuhla and Marten Richter — Institut für Theoretische Physik, Nichtlineare Optik und Quantenelektronik, EW 7-1, Technische Universität Berlin, Hardenbergstrasse 36, 10623 Berlin, Germany

Caused by the need for new quantum technologies, propagation of nonclassical light in an optical waveguide interacting with embedded semiconductor quantum dots (QDs) constitutes a focus of current experimental and theoretical research.

In this contribution, we study the time- and space-resolved characteristics of the waveguide-QD-system in the few-photon-limit, e.g. for single photon and (entangled) photons pairs.

To describe an open system dynamics, we propose a density matrix formalism, based on spatial dependent photon operators, specifically suitable for the few photon limit.The approach allows to include relevant pumping and dissipation mechanisms in a phenomenological Lindblad formalism. Overall the framework provides a closed set of equation of motion for the excitons in the quantum dot as well as the photon traveling in the waveguide.