多体非完全经典态的基于Affinity的关联测度
Correlation Measures Based on Affinity for Multipartite Non-fully Classical States
闫栋华 1王银珠1
作者信息
- 1. 太原科技大学应用科学学院,太原 030024
- 折叠
摘要
在量子信息理论中,量子关联是一种极其重要的物理资源.文章首先定义了多体非完全经典态基于Affinity的一种量子关联测度,它可以量化多体非完全经典态的关联程度;接下来证明了该关联测度满足量子关联度的一些必要物理性质,包括非负性、局部酉操作下的不变性、局部量子操作下的单调性、凸性以及连续性.
Abstract
Quantum correlation in the quantum states of multipartite composite systems is an important physical re-source in quantum information theory.How to quantify the correlation strength of quantum states is an important re-search problem in this field.In this article,we firstly introduce a quantum correlation measure for multipartite quan-tum states based on Affinity,which can quantify the correlation strength of multipartite non-fully classical states;Next we prove that the correlation measure satisfies some necessary physical properties of the quantum correlation,including nonnegativity,invariance under local unitary operations,monotony under local quantum operations,con-vexity,and continuity.
关键词
多体复合系统/完全经典态/投影测量/量子关联度/AffinityKey words
multipartite composite systems/fully classical state/projection measurement/quantum correlation/Affinity引用本文复制引用
基金项目
山西省自然科学基金(201901D111254)
出版年
2024
NETL
NSTL
维普
万方数据