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Published in:
2010 | OriginalPaper | Chapter
Optically induced spin rotations in quantum dots
Authors : Sophia E. Economou, Thomas L. Reinecke
Published in: Optical Generation and Control of Quantum Coherence in Semiconductor Nanostructures
Publisher: Springer Berlin Heidelberg
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The spin of an electron trapped in a quantum dot is currently of interest both because it constitutes a prototype quantum mechanical system in a controllable solid state environment and due to its relevance in quantum information processing. For such applications, a high level control of the spin is necessary, and various techniques from time dependent magnetic and electric fields to lasers are used. Here we develop the basic ideas involving the quantum dot electron spin for quantum information applications and review optical methods of its control. Particular emphasis is given on the use of hyperbolic secant optical pulses. Relevant experimental results are also briefly discussed.