论文标题
基于量子Fisher信息和方差的足够纠缠标准
A sufficient Entanglement Criterion Based On Quantum Fisher Information and Variance
论文作者
论文摘要
我们根据量子渔民信息和量子方差以不平等的形式得出标准，以检测多部分纠缠。它可以被认为是良好的PPT标准的补充，因为它也可以检测到绑定的纠缠状态。不平等是由Y.akbari-kourbolagh $ et \ al。$ [PHYS。 Rev A. 99，012304（2019）]，它基于量子Fisher信息引入了多部分纠缠标准。我们的标准在实验上是可以测量的，可用于检测任何混合白色嘈杂的$ n $ qudit纯状态。我们以几个例子说明我们的标准在检测某些纠缠状态方面具有良好的性能。
We derive criterion in the form of inequality based on quantum Fisher information and quantum variance to detect multipartite entanglement. It can be regarded as complementary of the well-established PPT criterion in the sense that it can also detect bound entangled states. The inequality is motivated by Y.Akbari-Kourbolagh $et\ al.$[Phys. Rev A. 99, 012304 (2019)] which introduced a multipartite entanglement criterion based on quantum Fisher information. Our criterion is experimentally measurable for detecting any $N$-qudit pure state mixed with white noisy. We take several examples to illustrate that our criterion has good performance for detecting certain entangled states.
