Experimental test of state-independent quantum contextuality of an indivisible quantum system
Experimental test of state-independent quantum contextuality of an indivisible quantum system
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DOI：
10.1103/physreva.87.052133
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发表时间：
2013-05
影响因子：
2.9
通讯作者：
Yun-Feng Huang;Meng Li;D. Cao;Chao Zhang;Yong-Sheng Zhang;Bi-Heng Liu;Chuan‐Feng Li;G. Guo
中科院分区：
文献类型：
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作者：
Yun-Feng Huang;Meng Li;D. Cao;Chao Zhang;Yong-Sheng Zhang;Bi-Heng Liu;Chuan‐Feng Li;G. Guo
我们报道了一个单光子量子态的量子上下文性的与态无关的实验测试。实验结果表明违反了最初由Yu和Oh [Phys. Rev. Lett. 108，030402（2012）]并由Cabello等人[Phys.Rev.A85，032108（2012）]进一步优化;该不等式被所有非上下文隐变量模型满足，并被所有qutrit状态违反。我们的实验以一种最基本的方式展示了这种性质的量子上下文性：一种与状态无关且与纠缠无关的方式。
We report a state-independent experimental test of quantum contextuality of a single-photon qutrit. The experimental results demonstrate violations of an inequality originally formulated by Yu and Oh [Phys. Rev. Lett. 108, 030402 (2012)] and further optimized by Cabello et al. [Phys. Rev. A 85, 032108 (2012)]; this inequality is satisfied by all noncontextual hidden variable models and is violated by all qutrit states. Our experiment shows quantum contextuality of this nature in a most fundamental way: A way that is independent of state and unrelated to entanglement.