Landau-Zener transitions in a semiconductor quantum dot
arXiv:0804.2669 · doi:10.1080/09500340802263109
Abstract
We study the transitions between neighboring energy levels in a quasi-one-dimensional semiconductor quantum dot with two interacting electrons in it, when it is subject to a linearly time-dependent electric field. We analyze the applicability of simple two-level Landau-Zener model to describe the evolution of the probability amplitudes in this realistic system. We show that the Landau-Zener model works very well when it is viewed in the adibatic basis, but it is not as robust in the diabatic basis.
7 pages, 7 figures. Submitted to Special Issue "Quantum Control of Matter and Light" of Journal of Modern Physics
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