论文标题
真正的三方爱因斯坦 - 波多尔斯基 - 罗森转向的蒸馏
Distillation of genuine tripartite Einstein-Podolsky-Rosen steering
论文作者
论文摘要
我们表明，可以从部分真正的Tripartite EPR STOSTOBLES组合中蒸馏出一个完美的Tripart EPR EPR可通道的组合。特别是，我们考虑了两种类型的混合场景：独立于设备的（1SDI）方案（一个观察者不信任，而其他两个观察者则值得信赖）和双面独立的（2SDI）方案（其中两个观察者是不信任的，一个观察者是信任的，并且受到了信任）。在这两种情况下，我们均显示了从许多最初的部分正面的，是相应状态的最初部分真实的配合组合的许多副本中的三Q Qubit Greenberger-Horne-Horne-Zeilinger（GHz）状态的完美蒸馏。在每种情况下，我们都证明，至少可以从无限多个初始组合的副本中蒸馏出一个完美的可通道组合的副本。如果采用有限副本的实际情况，我们表明我们的蒸馏协议的效率仅使用几个初始组合即将达到完美的水平。
We show that a perfectly genuine tripartite EPR steerable assemblage can be distilled from partially genuine tripartite EPR steerable assemblages. In particular, we consider two types of hybrid scenarios: one-sided device-independent (1SDI) scenario (where one observer is untrusted, and other two observers are trusted) and two-sided device-independent (2SDI) scenario (where two observers are untrusted, and one observer is trusted). In both the scenarios, we show distillation of perfectly genuine steerable assemblage of three-qubit Greenberger-Horne-Zeilinger (GHZ) states or three-qubit W states from many copies of initial partially genuine steerable assemblages of the corresponding states. In each of these cases, we demonstrate that at least one copy of a perfectly genuine steerable assemblage can be distilled with certainty from infinitely many copies of initial assemblages. In case of practical scenarios employing finite copies, we show that the efficiency of our distillation protocols reaches near perfect levels using only a few number of initial assemblages.
