• DocumentCode
    1185057
  • Title

    Unconditionally secure quantum key distribution over 50 km of standard telecom fibre

  • Author

    Gobby, C. ; Yuan, Z.L. ; Shields, A.J.

  • Author_Institution
    Cambridge Res. Lab., Toshiba Res. Eur. Ltd., Cambridge, UK
  • Volume
    40
  • Issue
    25
  • fYear
    2004
  • Firstpage
    1603
  • Lastpage
    1605
  • Abstract
    A weak pulse quantum key distribution system is presented, which is secure against all individual attacks, including photon number splitting. By carefully controlling the weak pulse intensity the maximum secure bit rate as a function of the fibre length is demonstrated. Unconditionally secure keys can be formed for standard telecom fibres exceeding 50 km in length.
  • Keywords
    optical fibre communication; quantum cryptography; telecommunication security; 50 km; fibre length; maximum secure bit rate; photon number splitting; secure quantum key distribution; standard telecom fibre; weak pulse quantum key distribution system;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20045038
  • Filename
    1368457
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1185057