Realization of an entanglement-assisted quantum delayed-choice experiment
Realization of an entanglement-assisted quantum delayed-choice experiment
复制标题
纠缠辅助量子延迟选择实验的实现
DOI：
10.1103/physreva.92.022126
复制
发表时间：
2015-08-28
影响因子：
2.9
通讯作者：
Long, Gui-Lu
中科院分区：
文献类型：
--
作者：
Xin, Tao;Li, Hang;Long, Gui-Lu
量子力学的波粒二象性、纠缠和叠加等令人困惑的性质在过去几十年中被实验解剖。然而，基于波粒客观性、决定论和独立性三个经典假设的隐变量模型试图解释甚至击败它们。量子技术的发展使我们能够在实验上测试量子力学和HV理论的预测。在这里，我们报告了一个实验演示的纠缠辅助量子延迟选择方案使用液体核磁共振量子信息处理器。我们实现的这个方案是基于最近提出的方案[Nat. 5：4997（2014）]，其给出了量子力学和HV理论的不同结果。在我们的实验中，干涉的强度和振幅与量子力学的理论预言是一致的。结果表明，当HV模型的所有三个假设相结合时，出现了矛盾，尽管上述任何两个假设是兼容的。
The puzzling properties of quantum mechanics, wave-particle duality, entanglement and superposition, were dissected experimentally at past decades. However, hidden-variable (HV) models, based on three classical assumptions of wave-particle objectivity, determinism and independence, strive to explain or even defeat them. The development of quantum technologies enabled us to test experimentally the predictions of quantum mechanics and HV theories. Here, we report an experimental demonstration of an entanglement-assisted quantum delayed-choice scheme using a liquid nuclear magnetic resonance quantum information processor. This scheme we realized is based on the recently proposed scheme [Nat. Comms. 5:4997(2014)], which gave different results for quantum mechanics and HV theories. In our experiments, the intensities and the visibilities of the interference are in consistent the theoretical prediction of quantum mechanics. The results imply that a contradiction is appearing when all three assumptions of HV models are combined, though any two of the above assumptions are compatible with it.