Pumped double quantum dot with spin-orbit coupling

Autor: Sherman Eugene, Khomitsky Denis
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Nanoscale Research Letters, Vol 6, Iss 1, p 212 (2011)
Druh dokumentu: article
ISSN: 1931-7573
1556-276X
Popis: Abstract We study driven by an external electric field quantum orbital and spin dynamics of electron in a one-dimensional double quantum dot with spin-orbit coupling. Two types of external perturbation are considered: a periodic field at the Zeeman frequency and a single half-period pulse. Spin-orbit coupling leads to a nontrivial evolution in the spin and orbital channels and to a strongly spin- dependent probability density distribution. Both the interdot tunneling and the driven motion contribute into the spin evolution. These results can be important for the design of the spin manipulation schemes in semiconductor nanostructures. PACS numbers: 73.63.Kv,72.25.Dc,72.25.Pn
Databáze: Directory of Open Access Journals
Externí odkaz: