Experimental Violation of Multiple-Measurement Time-Domain Bell's Inequalities  

作　　者：TANG Jian-Shun LI Yu-Long LI Chuan-Feng XU Jin-Shi CHEN Geng ZOU Yang ZHOU Zong-Quan GUO Guang-Can 唐建顺;理玉龙;李传锋;许金时;陈耕;邹扬;周宗权;郭光灿(Key Laboratory of Quantum Information,University of Science and Technology of China,Hefei 230026)

机构地区：[1]Key Laboratory of Quantum Information,University of Science and Technology of China,Hefei 230026

出　　处：《Chinese Physics Letters》2011年第6期40-43,共4页中国物理快报（英文版）

基　　金：by the National Basic Research Program of China;the National Natural Science Foundation of China under Grant Nos 60921091,10874162 and 10734060。

摘　　要：In the original time-domain Bell's inequalities(Leggett-Garg-type inequalities),the physical objective is measured at three time points.When more time points are chosen,several methods can be used to extend these inequalities.We experimentally demonstrate the violation of these extended inequalities using single photons from a self-assembled quantum dot.In general,for each extension,the quantity by which the quantum-mechanics value exceeds the classical limit becomes larger as the number of measurement time points increases.This quantity has a maximum value for the extensions that have the same number of measurement time points.Furthermore,we evaluate the noise tolerance for these extensions with a quantity that is related to the number of standard deviations by which the experimental result surpasses the classical limit.

关 键 词：QUANTUM INEQUALITIES LIMIT 

分 类 号：O17[理学—数学]