Dephasing and Dynamic Localization in Quantum Dots
Abstract
The effects of dynamic localization in a solid-state system -- a quantum dot -- are considered. The theory of weak dynamic localization is developed for non-interacting electrons in a closed quantum dot under arbitrary time-dependent perturbation and its equivalence to the theory of weak Anderson localization is demonstrated. The dephasing due to inelastic electron scattering is shown to destroy the dynamic localization in a closed quantum dot leading to the classical energy absorption at times much greater than the inelastic scattering time. Finally a realistic case of a dot weakly connected to leads is studied and it is shown that the dynamic localization may lead to a drastic change of the shape of the Coulomb blockade peak in the dc conductance vs the gate voltage.
Cite
@article{arxiv.cond-mat/0312316,
title = {Dephasing and Dynamic Localization in Quantum Dots},
author = {V. E. Kravtsov},
journal= {arXiv preprint arXiv:cond-mat/0312316},
year = {2015}
}
Comments
24 pages, 7 figures, Proceeding of the NATO Conference "Fundamental Problems of Mesoscopic Physics: Interaction and Decoherence.", Granada (Spain)