论文标题
关于三方系统的真正纠缠
On genuine entanglement for tripartite systems
论文作者
论文摘要
我们根据部分换位和密度矩阵的相关张量规范研究三方系统中的真正纠缠。我们首先得出一个足够的分析标准,以检测三方量子量子状态的真正纠缠与密度矩阵的部分换位。然后,我们使用相关张量的规范来研究三方Qudit量子状态的真正纠缠,并通过构建某些矩阵获得真正的纠缠标准。用详细的例子,我们的结果被认为能够检测到比以前的研究更真实的三方纠缠状态。
We investigate the genuine entanglement in tripartite systems based on partial transposition and the norm of correlation tensors of the density matrices. We first derive an analytical sufficient criterion to detect genuine entanglement of tripartite qubit quantum states combining with the partial transposition of the density matrices. Then we use the norm of correlation tensors to study genuine entanglement for tripartite qudit quantum states and obtain a genuine entanglement criterion by constructing certain matrices. With detailed examples our results are seen to be able to detect more genuine tripartite entangled states than previous studies.