Berlin 2008 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 31: Poster II

HL 31.41: Poster

Dienstag, 26. Februar 2008, 16:30–19:00, Poster D

Theory of quantum light harvesting of coupled quantum dot systems — •Alexander Carmele, Marten Richter, and Andreas Knorr — Institut für Theoretische Physik, AG Nichtlineare Optik und Quantenelektronik, Technische Universität Berlin, Hardenbergstr. 36, 10623 Berlin, Germany

Within a density-matrix approach for the coupled electron-photon dynamics, we compare the excitation of Coulomb-coupled quantum dots [1] with classical and non-classical light [2]. The theory evaluates the impact of the different photon-statistics of the exciting light (e.g. sub-poissonian or squeezed light) on the creation and annihiliation of optically active excitons. In particular, to understand the light harvesting dynamics of Förster-coupled nanosystems under realistic conditions we examine the exciton generation via thermal light.