论文标题
管理三方纠缠挑战
Managing the Three-Party Entanglement Challenge
论文作者
论文摘要
我们介绍了多方量子纠缠的挑战，并解释了最近学习采取措施的成功。鉴于纠缠是量子理论的违反直觉特征的广泛认可的声誉，我们首先描述了纯国纠缠本身。我们限制了对多方Qubit状态的关注。然后，我们介绍了几十年来一直具有挑战性的功能，将纠缠措施扩展到贝尔州的2季度之外。我们结束了对当前理解的描述，该理解解决了三分之一的纠缠挑战。这必然考虑到3 Quibit State Space的基本划分分为两个完全独立的部门，这些部门与所谓的GHz和$ w $州确定。
We introduce the challenges of multi-party quantum entanglement and explain a recent success in learning to take its measure. Given the widely accepted reputation of entanglement as a counter-intuitive feature of quantum theory, we first describe pure-state entanglement itself. We restrict attention to multi-party qubit states. Then we introduce the features that have made it challenging for several decades to extend an entanglement measure beyond the 2-qubit case of Bell states. We finish with a description of the current understanding that solves the 3-qubit entanglement challenge. This necessarily takes into account the fundamental division of the 3-qubit state space into two completely independent sectors identified with the so-called GHZ and $W$ states.
