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Quantum Key Distribution with Continuous Variables in Optics

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Book cover Quantum Information with Continuous Variables

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Abstract

We discuss a quantum key distribution scheme in which small phase and amplitude modulations of quantum limited, CW light beams carry the key information. We identify universal constraints on the level of shared information between the intended receiver (Bob) and any eavesdropper (Eve) and use this to make a general evaluation of the security and efficiency of the scheme.

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Author information

Authors and Affiliations

  1. Department of Physics, Centre for Quantum Computer Technology, University of Queensland, St Lucia, 4072, QLD, Australia

    T. C. Ralph

Authors
  1. T. C. Ralph
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Editor information

Editors and Affiliations

  1. School of Informatics, University of Wales, Bangor, UK

    Samuel L. Braunstein

  2. Institute of Physics, Orissa, India

    Arun K. Pati

  3. Theoretical Physics Division, BARC, Mumbai, India

    Arun K. Pati

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© 2003 Kluwer Academic Publishers

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Ralph, T.C. (2003). Quantum Key Distribution with Continuous Variables in Optics. In: Braunstein, S.L., Pati, A.K. (eds) Quantum Information with Continuous Variables. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-1258-9_21

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  • DOI: https://doi.org/10.1007/978-94-015-1258-9_21

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-90-481-6255-0

  • Online ISBN: 978-94-015-1258-9

  • eBook Packages: Springer Book Archive

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