多源非对称星型量子网络及其非定域性  

Multi-source asymmetric star-shaped quantum network configuration and its nonlocality

作　　者：丁东[1] 余明星 纪豪森 李赞佳[1] DING Dong;YU Mingxing;JI Haosen;LI Zanjia(North China Institute of Science and Technology,Yanjiao 065201,China)

机构地区：[1]华北科技学院,北京东燕郊065201

出　　处：《华北科技学院学报》2024年第3期107-111,共5页Journal of North China Institute of Science and Technology

基　　金：河北省中央引导地方科技发展资金项目(226Z0901G);河北省高层次人才项目(C20221068);河北省高等学校科学技术研究重点项目(ZD2021407);河北省高等教育教学改革研究与实践项目(2021GJJG482)。

摘　　要：作为Bell定理的一种推广,基于多纠缠源的量子网络及其非定域性被人们广泛关注。本文基于独立源假设研究多源星型量子网络,构建具有5个独立源和8个节点的非对称星型网络模型,并探究其量子非定域性。结果表明,对于分发到网络节点的一组指定的纠缠纯态,该量子网络模型下得到的5-local定域关联不等式将会被违背,当前量子网络模型具有明显的非定域特性。A generalization of the Bell theorem leads to multi-source quantum network and its nonlocality,which have been widely studied.We construct a multi-source star-network with 5 sources and 8 nodes based on the assumption of source independence,and then we research its quantum nonlocality.As a result,a set of entangled sources can reveal quantum nonlocality of the present network configuration by violating the 5-local correlation inequalities.

关 键 词：多源量子网络 量子非定域性 非对称星型网络 

分 类 号：O413.1[理学—理论物理]