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Exciton States in Quantum Dot Solids: Excitation Transfer and Dynamic Decorrelation

Published

Author(s)

Garnett W. Bryant

Abstract

Coherent exciton transport in Quantum dot solids is determined by electron and hole interdot tunneling and dipole-dipole interdot excitation transfer. We present a tight-binding theory of coupled dots to understand the interdot coupling and hybridization of states in dot solids. Results show that significant coupling is possible. Exiciton dynamics in a dot solid is simulated by use of a Hubbard model that includes interdot carrier tunneling, electron-hole attraction and Forster exciton excitation transfer. Dynamic exciton decorrelation is driven by carrier tunneling. Dynamic exciton dephasing is driven by excitation transfer.
Citation
Physica B-Condensed Matter
Volume
314
Issue
No. 1-4

Keywords

electronic structure, excitons, nanocrystals, quantum computing, quantum dots

Citation

Bryant, G. (2003), Exciton States in Quantum Dot Solids: Excitation Transfer and Dynamic Decorrelation, Physica B-Condensed Matter (Accessed April 15, 2024)
Created March 1, 2003, Updated February 17, 2017