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arXiv 2103.07141quant-ph
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利用量子费舍尔信息检测多体纠缠

Detection of multipartite entanglement via quantum Fisher information

Yan Hong, Xianfei Qi, Ting Gao, Fengli Yan

摘要:

本文研究了两种不同的多体关联:$k$ -不可分性和$k$ -体纠缠,这两种关联都能描述多体纠缠的本质特征。提出了利用量子费舍尔信息检测$k$不可分性和$k$体纠缠的有效方法.我们说明了我们的结果的意义,并表明,他们确定了一些$k$ -不可分性和$k$ -partite纠缠,不能确定由已知的标准,通过几个具体的例子。

英文摘要:

In this paper, we focus on two different kinds of multipartite correlation, $k$-nonseparability and $k$-partite entanglement, both of which can describe the essential characteristics of multipartite entanglement. We propose effective methods to detect $k$-nonseparability and $k$-partite entanglement in terms of quantum Fisher information. We illustrate the significance of our results and show that they identify some $k$-nonseparability and $k$-partite entanglement that cannot be identified by known criteria by several concrete examples.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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