Quantum secret sharing via local operations and classical communication.

Quantum secret sharing via local operations and classical communication.
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通过本地操作和经典通信进行量子秘密共享

DOI:
10.1038/srep16967
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发表时间:
2015-11-20
期刊:
影响因子:
4.6
通讯作者:
Wen QY
Wen QY
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Yang YH;Gao F;Wu X;Qin SJ;Zuo HJ;Wen QY

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本文研究了量子系统中正交多体纠缠态的量子化问题。根据这些性质,我们提出了一个标准的(2,n)门限量子秘密共享方案(称为LOCC-QSS方案),解决了[Rahamanet al.,Rev.A,91,022330(2015)]。另一方面,我们发现所有现有的(k,n)-阈值LOCC-QSS方案都是不完美的(或“斜坡”),即,未经授权的组可以获得关于共享秘密的某些信息。在此基础上,我们提出了一个接近完美的(3,4)门限LOCC-QSS方案。
We investigate the distinguishability of orthogonal multipartite entangled states ind-qudit system byrestricted local operations and classical communication. According to these properties, we propose a standard (2,n)-threshold quantum secret sharing scheme (called LOCC-QSS scheme), which solves the open question in [Rahamanet al., Phys. Rev. A, 91, 022330 (2015)]. On the other hand, we find that all the existing (k,n)-threshold LOCC-QSS schemes are imperfect (or “ramp”), i.e., unauthorized groups can obtain some information about the shared secret. Furthermore, we present a (3, 4)-threshold LOCC-QSS scheme which is close to perfect.
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