Photo-induced spin filtering in a double quantum dot

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We investigate the spin-dependent electron dynamics in a double quantum dot driven by sub-picosecond asymmetric electromagnetic pulses. We show analytically that applying the appropriate pulses, specified here, allows a spin separation on a femtosecond time scale in the sense that states with a desired spin projection are localized mainly on one of the dots. It is shown how to maintain in time this photo-induced spin-dependent filtering. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3660227]
Publisher
AMER INST PHYSICS
Issue Date
2011-11
Language
English
Article Type
Article
Citation

APPLIED PHYSICS LETTERS, v.99, no.19

ISSN
0003-6951
DOI
10.1063/1.3660227
URI
http://hdl.handle.net/10203/261897
Appears in Collection
PH-Journal Papers(저널논문)
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