Robust multiparty quantum secret key sharing over two collective-noise channels
Robust multiparty quantum secret key sharing over two collective-noise channels
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DOI：
10.1016/j.physa.2005.07.005
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发表时间：
2006-02
影响因子：
3.3
通讯作者：
Zhan-jun Zhang
中科院分区：
文献类型：
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作者：
Zhan-jun Zhang
基于集合噪声信道上的基于偏振的量子密钥分发协议[物理。莱特牧师。92(2004)017901]的基础上，提出了一个在两个集体噪声信道(即集体退相信道和集体旋转信道)上实现多方量子秘密共享的(n，n)门限稳健方案。在该方案中，只有当所有分享者共同协作时，分享者整体才能与消息发送者建立联合密钥。由于Bell单重态已经足够使用，而且只需要识别单光子偏振，根据目前的技术，该方案是可行的。
Based on a polarization-based quantum key distribution protocol over a collective-noise channel [Phys. Rev. Lett. 92 (2004) 017901], a robust (n,n)-threshold scheme of multiparty quantum secret sharing of key over two collective-noise channels (i.e., the collective dephasing channel and the collective rotating channel) is proposed. In this scheme the sharer entirety can establish a joint key with the message sender only if all the sharers collaborate together. Since Bell singlets are enough for use and only single-photon polarization needs to be identified, this scheme is feasible according to the present-day technique.