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Quantum versus classical hyperfine-induced dynamics in a quantum dot

Coish, W. A. and Loss, Daniel and Yuzbashyan, E. A. and Altshuler, B. L.. (2007) Quantum versus classical hyperfine-induced dynamics in a quantum dot. Journal of applied physics, Vol. 101, H. 8 , 081715, 5 S..

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Official URL: http://edoc.unibas.ch/dok/A5254627

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Abstract

In this article we analyze spin dynamics for electrons confined to semiconductor quantum dots due to the contact hyperfine interaction. We compare mean-field (classical) evolution of an electron spin in the presence of a nuclear field with the exact quantum evolution for the special case of uniform hyperfine coupling constants. We find that (in this special case) the zero-magnetic-field dynamics due to the mean-field approximation and quantum evolution are similar. However, in a finite magnetic field, the quantum and classical solutions agree only up to a certain time scale t
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Mesoscopics (Loss)
UniBasel Contributors:Loss, Daniel
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Institute of Physics
ISSN:0021-8979
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:26
Deposited On:22 Mar 2012 13:54

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