Coherent control of interacting electrons in quantum dots via navigation in the energy spectrum
Mesoscale and Nanoscale Physics
2009-11-13 v2 Strongly Correlated Electrons
Quantum Physics
Abstract
Quantum control of the wave function of two interacting electrons confined in quasi-one-dimensional double-well semiconductor structures is demonstrated. The control strategies are based on the knowledge of the energy spectrum as a function of an external uniform electric field. When two low-lying levels have avoided crossings our system behaves dynamically to a large extent as a two-level system. This characteristic is exploited to implement coherent control strategies based on slow (adiabatic passage) and rapid (diabatic Landau-Zener transition) changes of the external field. We apply this method to reach desired target states that lie far in the spectrum from the initial state.
Keywords
Cite
@article{arxiv.cond-mat/0703192,
title = {Coherent control of interacting electrons in quantum dots via navigation in the energy spectrum},
author = {G. E. Murgida and D. A. Wisniacki and P. I. Tamborenea},
journal= {arXiv preprint arXiv:cond-mat/0703192},
year = {2009}
}
Comments
Published version. 4 pages, 3 figures