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Manipulating Quantum Coherence in Solid State Systems

  • Conference proceedings
  • © 2007

Overview

Editors:
  1. Michael E. Flatté

    1. University of Iowa, Iowa City, USA

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    You can also search for this editor in PubMed   Google Scholar

  2. I. Ţifrea

    1. Babeş-Bolyai University, Cluj Napoca, Romania

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    You can also search for this editor in PubMed   Google Scholar

  • Presents both semiconducting and superconducting approaches to manipulating quantum coherence in same book
  • Emphasizes the material and physical properties of semiconductors and superconductors relevant for their application to quantum coherence manipulation
  • Consolidates state-of-the-art information in this area only otherwise available in journal articles

Part of the book series: NATO Science Series II: Mathematics, Physics and Chemistry (NAII, volume 244)

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Table of contents (6 papers)

  1. Front Matter

    Pages i-xi
    Download chapter PDF

  2. Semiconductor Spintronics for Quantum Computation

    • M. E. Flatté
    Pages 1-52

  3. Many-body Effects in Spin-polarized Transport

    • G. Vignale
    Pages 53-96

  4. Nuclear Spin Dynamics in Semiconductor Nanostructures

    • I. Ţifrea
    Pages 97-128

  5. Spin Coherence in Semiconductors

    • J. Berezovsky, W. H. Lau, S. Ghosh, J. Stephens, N. P. Stern, D. D. Awschalom
    Pages 130-170

  6. Quantum Computing with Superconductors I: Architectures

    • M. R. Geller, E. J. Pritchett, A. T. Sornborger, F. K. Wilhelm
    Pages 171-194

  7. Superconducting Qubits II: Decoherence

    • F. K. Wilhelm, M. J. Storcz, U. Hartmann, M. R. Geller
    Pages 195-232

  8. Back Matter

    Pages 233-234
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Keywords

About this book

The lectures at the NATO Advanced Study Institute “Manipulating Quantum Coherence in Solid State Systems” presented a fundamental introduction to three solid-state approaches to achieving quantum computation: semiconductor spin-based, semiconductor charge-based, and superconducting approaches. The purpose in bringing together lecturers and students in these disparate areas was to provide the opportunity for communication and cross-fertilization between these three areas, all focusing on the central goal of manipulating quantum coherence in solids. These proceedings present detailed introductions to the fundamentals of the ?rst approach and the third approach, and as such bring together a fundamental pedagogical treatment of the two areas which have progressed the furthest towards realizing a scalable system of manipulable qubits. Semiconductor spin-based approaches to quantum computation have made tremendousadvancesinthepast severalyears. Individual spinshavebeen succe- fully con?ned within self-assembled quantum dots and lithographically-formed quantum dots. Within the self-assembled quantum dots the spin lifetimes have been measured and shown to be longer than 1 ms at low temperature. Lithographic dots have been used to controllably reorient nuclear spins in order to lengthen the spin lifetimes. These exceptionally long spin lifetimes should permit many spin operations (qubit operations) within a decoherence time. Coherent spin transfer has also been demonstrated between two colloidal dots connected by polymer chains. Spins can be localized on dopant atoms, such as manganese atoms in gallium arsenide. These spins can be oriented, manipulated and detected with a- electrical means. Electrical techniques can also be used to manipulate nuclear spins, andeventually to drive nuclear magnetic resonance.

Editors and Affiliations

  • University of Iowa, Iowa City, USA

    Michael E. Flatté

  • Babeş-Bolyai University, Cluj Napoca, Romania

    I. Ţifrea

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