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Quantum Cloning Optimal for Joint Measurements

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Quantum Communication, Computing, and Measurement 3

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Abstract

We show that universally covariant cloning is not optimal for achieving joint measurements of noncommuting observables with minimum added noise. For such a purpose a cloning transformation that is covariant with respect to a restricted transformation group is needed.

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Author information

Authors and Affiliations

  1. Unità INFM and Dipartimento di Fisica “Alessandro Volta”, Università di Pavia, via A. Bassi 6, I-27100, Pavia, Italy

    Giacomo Mauro D’Ariano & Massimiliano Federico Sacchi

Authors
  1. Giacomo Mauro D’Ariano
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  2. Massimiliano Federico Sacchi
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Editor information

Editors and Affiliations

  1. University of Camerino, Camerino, Italy

    Paolo Tombesi

  2. Tamagawa University, Machida, Tokyo, Japan

    Osamu Hirota

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© 2002 Kluwer Academic Publishers

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D’Ariano, G.M., Sacchi, M.F. (2002). Quantum Cloning Optimal for Joint Measurements. In: Tombesi, P., Hirota, O. (eds) Quantum Communication, Computing, and Measurement 3. Springer, Boston, MA. https://doi.org/10.1007/0-306-47114-0_26

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  • DOI: https://doi.org/10.1007/0-306-47114-0_26

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-0-306-46609-0

  • Online ISBN: 978-0-306-47114-8

  • eBook Packages: Springer Book Archive

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