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Proceedings Paper

Reducing dephasing in coupled quantum dot-cavity systems by engineering the carrier wavefunctions
Author(s): A. Nysteen; P. Kaer; J. Mørk
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Paper Abstract

We demonstrate theoretically how photon-assisted dephasing by the electron-phonon interaction in a coupled cavity-quantum dot system can be significantly reduced for specific QD-cavity detunings. Our starting point is a recently published theory,1 which considers longitudinal acoustic phonons, described by a non-Markovian model, interacting with a coupled quantum dot-cavity system. The reduction of phonon-induced dephasing is obtained by placing the cavity-quantum dot system inside an infinite slab, assuming spherical electronic wavefunctions. Based on our calculations, we expect this to have important implications in single-photon sources, allowing the indistinguishability of the photons to be improved.

Paper Details

Date Published: 23 February 2012
PDF: 6 pages
Proc. SPIE 8271, Quantum Dots and Nanostructures: Synthesis, Characterization, and Modeling IX, 82710E (23 February 2012); doi: 10.1117/12.905594
Show Author Affiliations
A. Nysteen, Technical Univ. of Denmark (Denmark)
P. Kaer, Technical Univ. of Denmark (Denmark)
J. Mørk, Technical Univ. of Denmark (Denmark)

Published in SPIE Proceedings Vol. 8271:
Quantum Dots and Nanostructures: Synthesis, Characterization, and Modeling IX
Kurt G. Eyink; Frank Szmulowicz; Diana L. Huffaker, Editor(s)

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