基于量子纠缠的无漏洞Bell实验进展概述  

Overview of the Development of Loophole-free Tests of Bell’s Theorem Based on Quantum Entanglement

作　　者：李鹏云 许华醒 LI Peng-yun;XU Hua-xing(China Academy of Electronics and Information Technology,Beijing 100041)

机构地区：[1]中国电子科学研究院

出　　处：《中国电子科学研究院学报》2019年第11期1121-1128,1142,共9页Journal of China Academy of Electronics and Information Technology

基　　金：国家自然科学基金(61705202; 11904333)

摘　　要：Bell定理描述了量子力学预言的现象不可能用经典的定域实在论重现,这样的矛盾能够通过Bell不等式严格表述。然而,大多数Bell不等式的实验常常以某些假设条件为前提,导致了实验“漏洞”的存在。近年来,随着量子技术的快速发展,Bell不等式的无漏洞测量得到广泛关注,实现漏洞的同时封闭也逐步成为可能,从而有望彻底否定经典定域实在论,肯定量子力学的预言。本文详细分析了基于糾缠的Bell不等式实验的发展,并阐述了当前实现Bell实验漏洞同时封闭的可行方案。Bell*s theorem states that some predictions of quantum mechanics cannot be reproduced by a local realist theory.That conflict can be expressed by Bell's inequality.However,most experimental conclusions of Bell inequality are often based on certain assumptions,which lead to the existence of experimental "loophole".Recently,with the development of quantum technology,loophole-free tests of Bell's inequality have received extensive attention.It is also possible to close simultaneously all the loopholes in a single experiment,which is expected to completely deny the classical local realism and affirm the prediction of quantum mechanics.In this review,we summarize in detail the development of the experimental tests of Bell's inequality based on quantum entanglement,and introduce some feasible solutions for the loophole-free tests of Bell's theorem.

关 键 词：贝尔定理 定域实在论 BELL不等式 无漏洞测量 

分 类 号：O431.2[机械工程—光学工程]