论文标题
基于Weyl操作员的可分离性标准
Separability criteria based on the Weyl operators
论文作者
论文摘要
纠缠作为信息处理的重要资源，可以通过量子状态的特殊属性来描述。 使用众所周知的Weyl基础，我们提出了量子状态的新BLOCH分解并研究其可分离性问题。 这种分解使我们能够根据相关矩阵找到可分离性的替代表征。 我们说，该标准可有效检测各向同性国家，钟形式状态和一些PPT纠缠状态的纠缠。 我们还使用Weyl操作员来构建检测操作员以进行量子传送。
Entanglement as a vital resource for information processing can be described by special properties of the quantum state. Using the well-known Weyl basis we propose a new Bloch decomposition of the quantum state and study its separability problem. This decomposition enables us to find an alternative characterization of the separability based on the correlation matrix. We shaw that the criterion is effective in detecting entanglement for the isotropic states, Bell-diagonal states and some PPT entangled states. We also use the Weyl operators to construct an detecting operator for quantum teleportation.
