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Indirect spin dephasing via charge state decoherence in optical control schemes in quantum dots

Authors
  • Grodecka, A.
  • Machnikowski, P.
  • Förstner, J.
Type
Published Article
Publication Date
Apr 27, 2009
Submission Date
Nov 13, 2008
Identifiers
DOI: 10.1103/PhysRevA.79.042331
Source
arXiv
License
Yellow
External links

Abstract

We demonstrate that an optically driven spin of a carrier in a quantum dot undergoes indirect dephasing via conditional optically induced charge evolution even in the absence of any direct interaction between the spin and its environment. A generic model for the indirect dephasing with a three-component system with spin, charge, and reservoir is proposed. This indirect decoherence channel is studied for the optical spin manipulation in a quantum dot with a microscopic description of the charge-phonon interaction taking into account its non-Markovian nature.

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