Quantum state discrimination with general figures of merit

Won-Young Hwang and Yeong-Deok Han
Phys. Rev. A 86, 032339 – Published 27 September 2012
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  • INTRODUCTION
  • MAIN CONTENTS
  • DISCUSSION AND CONCLUSION
  • ACKNOWLEDGEMENTS
    • References

    Abstract

    We solve the problem of quantum state discrimination with “general (symmetric) figures of merit” for an even number of symmetric quantum bits with use of the no-signaling principle. It turns out that conditional probability has the same form for any figure of merit. Optimal measurement and corresponding conditional probability are the same for any monotonous figure of merit.

    • Figure
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    • Received 6 October 2011

    DOI:https://doi.org/10.1103/PhysRevA.86.032339

    ©2012 American Physical Society

    Authors & Affiliations

    Won-Young Hwang1,2,* and Yeong-Deok Han3

    • 1Department of Physics Education, Chonnam National University, Gwangju 500-757, Republic of Korea
    • 2Institute for Quantum Computing, University of Waterloo, Waterloo, ON N2L 3G1, Canada
    • 3Department of Game Contents, Woosuk University, Wanju, Cheonbuk 565-701, Republic of Korea

    • *wyhwang@jnu.ac.kr

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    Issue

    Vol. 86, Iss. 3 — September 2012

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