论文标题
一个可分离性标准和同意的下限
A family of separability criteria and lower bounds of concurrence
论文作者
论文摘要
在量子信息理论中，检测两分状态的纠缠的问题是重大的。在本文中，我们将KY风扇规范应用于两分国家的修订重新调整矩阵。特异性地，我们考虑了两分状态的可分离标准家族，并在密度矩阵对应于一个状态时存在，该标准等同于增强的重新调整标准。此外，我们介绍了并发的分析下限，以及对任意维度系统的凸式范围扩展的负面影响。
The problem on detecting the entanglement of a bipartite state is significant in quantum information theory. In this article, we apply the Ky Fan norm to the revised realignment matrix of a bipartite state. Specifially, we consider a family of separable criteria for bipartite states, and present when the density matrix corresponds to a state is real, the criteria is equivalent to the enhanced realignment criterion. Moreover, we present analytical lower bounds of concurrence and the convex-roof extended negativity for arbitrary dimensional systems.
