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Berlin 2008 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 31: Poster II

HL 31.41: Poster

Tuesday, February 26, 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.

[1]M. Richter, K.J. Ahn, A. Knorr, A. Schliwa, D. Bimberg, M. E.-A.
 Madjet, T. Renger, Phys.Stat.Sol.(B), 243(10):2302-2310, 2006
[2]M. Kira, S.W. Koch, Phys. Rev. A 73, 013813 (2006)
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