中国物理B ›› 2021, Vol. 30 ›› Issue (10): 100306-100306.doi: 10.1088/1674-1056/abfb5e
Yan Hong(宏艳)1, Xianfei Qi(祁先飞)2, Ting Gao(高亭)3,†, and Fengli Yan(闫凤利)4,‡
Yan Hong(宏艳)1, Xianfei Qi(祁先飞)2, Ting Gao(高亭)3,†, and Fengli Yan(闫凤利)4,‡
摘要: There are many different classifications of entanglement for multipartite quantum systems, one of which is based on the number of the unentangled particles. In this paper, we mainly study the quantum states containing at most k-1 unentangled particles and provide several entanglement criteria based on the different forms of inequalities, which can both identify quantum states containing at most k-1 unentangled particles. We show that these criteria are more effective for some states by concrete examples.
中图分类号: (Entanglement measures, witnesses, and other characterizations)