物理学报2012，Vol.61Issue(17)：9-13,5.
三光子GHZ态中不同Bell型不等式的实验研究
Experimental investigation of different Bell-type inequality in three-qubit Greenberger-Horne-Zeilinger states
摘要
Abstract
We investigate experimentally the violation of the Bell, Mermin and Svetlichny inequalities to local realism prediction. Using the maximum-likelihood technique to construct the density matrix and calculate the fidelity of the Greenberger-Horne-Zeilinger （GHZ） state. The values of the three inequalities are measured. The experimental resuls show that the three inequalities have different violation degrees to local realism prediction. So we can choose a suitable method of nonlocality to estimate the security of quantum channel.关键词
量子纠缠/GHZ纠缠态/非定域性Key words
quantum entanglement/GHZ entangled states/nonlocality分类
数理科学引用本文复制引用
赵加强,曹连振,王晓芹,逯怀新..三光子GHZ态中不同Bell型不等式的实验研究[J].物理学报,2012,61(17):9-13,5.基金项目
国家自然科学基金（批准号：11174224）,山东省科技发展计划（批准号：2011GGA07158）,山东省自然科学基金（批准号：ZR2011AL012,ZR2009AL018）和山东省高等学校科技计划（批准号：J11LA56）资助的课题 （）
