• DocumentCode
    847321
  • Title

    Square-root measurement for quantum symmetric mixed state signals

  • Author

    Kato, Kentaro ; Hirota, Osamu

  • Author_Institution
    Fac. of Sci. & Eng., Chuo Univ., Tokyo, Japan
  • Volume
    49
  • Issue
    12
  • fYear
    2003
  • Firstpage
    3312
  • Lastpage
    3317
  • Abstract
    A certain class of mixed states artificially constructed that is used in quantum cryptography is crucial for representation of signals. This correspondence shows that the square-root measurement gives the optimal measurement for such a class of mixed states.
  • Keywords
    Bayes methods; error statistics; quantum cryptography; quantum theory; signal representation; error probability; quantum cryptography; quantum detection theory; quantum symmetric mixed state signals; square-root measurement; Amplitude shift keying; Associate members; Channel coding; Cryptography; Error probability; Information theory; Mutual information; Phase shift keying; Quadrature phase shift keying; Quantum mechanics;
  • fLanguage
    English
  • Journal_Title
    Information Theory, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9448
  • Type

    jour

  • DOI
    10.1109/TIT.2003.820050
  • Filename
    1255561
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=847321