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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Henry van Driel
  • Vol. 27, Iss. 6 — Jun. 1, 2010
  • pp: A46–A62

Theory of unitary spin rotation and spin-state tomography for a single electron and two electrons

T. Takagahara  »View Author Affiliations

JOSA B, Vol. 27, Issue 6, pp. A46-A62 (2010)

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Electron spins in semiconductor nanostructures are considered as one of the most promising candidates of the building blocks for quantum information processing. Initialization, coherent manipulation, and measurement of a single electron spin have been recently established. Here we explore the possibility to manipulate and measure by optical means the states of two electrons as a single qubit in nanostructures and propose methods of spin-state tomography based on Faraday or Kerr rotation for cases of both a single electron and two electrons, as well as a method of the Bell-state measurement for two electrons.

© 2010 Optical Society of America

OCIS Codes
(190.3270) Nonlinear optics : Kerr effect
(190.5970) Nonlinear optics : Semiconductor nonlinear optics including MQW
(270.1670) Quantum optics : Coherent optical effects
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Cold Atoms, Ions, Electrons, and Molecules

Original Manuscript: November 19, 2009
Revised Manuscript: January 27, 2010
Manuscript Accepted: January 27, 2010
Published: March 16, 2010

T. Takagahara, "Theory of unitary spin rotation and spin-state tomography for a single electron and two electrons," J. Opt. Soc. Am. B 27, A46-A62 (2010)

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