Quantum secret sharing schemes and reversibility of quantum operations
Quantum secret sharing schemes and reversibility of quantum operations
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DOI:
10.1103/physreva.72.032318
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发表时间:
2005-04
影响因子:
2.9
通讯作者:
T. Ogawa;A. Sasaki;Mitsugu Iwamoto;Hirosuke Yamamoto
中科院分区:
文献类型:
--
作者:
T. Ogawa;A. Sasaki;Mitsugu Iwamoto;Hirosuke Yamamoto
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.