Wang Meng, Gong Qihuang, He Qiongyi
Opt Lett. 2014 Dec 1;39(23):6703-6. doi: 10.1364/OL.39.006703.
Collective multipartite Einstein-Podolsky-Rosen (EPR) steering is a type of quantum correlation shared among N parties, where the EPR paradox of one party can only be realized by performing local measurements on all the remaining N-1 parties. We formalize the collective tripartite steering in terms of local hidden state model and give the steering inequalities that act as signatures and suggest how to optimize collective tripartite steering in specific optical schemes. The special entangled states with property of collective multipartite steering may have potential applications in ultra-secure multiuser communication networks where the issue of trust is critical.
集体多方爱因斯坦-波多尔斯基-罗森（EPR）引导是一种在N个参与方之间共享的量子关联，其中一方的EPR佯谬只能通过对其余所有N - 1个参与方进行局部测量来实现。我们根据局部隐态模型对集体三方引导进行形式化，并给出作为特征的引导不等式，并建议如何在特定光学方案中优化集体三方引导。具有集体多方引导特性的特殊纠缠态可能在信任问题至关重要的超安全多用户通信网络中具有潜在应用。
