研究成果

学術論文誌

  • Quantum Secret Sharing Schemes and Reversibility of Quantum Operations
    著者
    T. Ogawa, A. Sasaki, M. Iwamoto, and H. Yamamoto
    雑誌名
    Physical Review A
    72
    3
    出版社
    APS Physics
    発行年
    2021
    Abstract

    Quantum secret sharing schemes encrypting a quantum state into a multipartite entangled state are treated. The lower bound on the dimension of each share given by Gottesman [Phys. Rev. A 61, 042311 (2000)] is revisited based on a relation between the reversibility of quantum operations and the Holevo information. We also propose a threshold ramp quantum secret sharing scheme and evaluate its coding efficiency.