Tunneling transport and diffusion in weakly coupled quantum dot ensembles
- 14 December 1998
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 73 (24) , 3536-3538
- https://doi.org/10.1063/1.122799
Abstract
The lateral tunneling rate and carrier diffusion in weakly coupled quantum dots are analyzed. In the weak coupling limit, localization of charge within a single dot is obtained through superposition of the lowest-energy eigenstates of coupled dots. The free evolution of the wave function leads to tunneling, but with a time dependence that includes dephasing. Idealized quantum dot boundary conditions are used to estimate tunneling times, and these are compared with recent experiments.Keywords
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