论文标题
基于轨道 - 摩托摩门的基于Hardy悖论的实验测试，用于多维系统和多维系统
Orbital-angular-momentum-based experimental test of Hardy's paradox for multisetting and multidimensional systems
论文作者
论文摘要
在量子信息科学和技术中表征高维状态至关重要。最近的理论进步已将耐力的悖论扩展到具有多维系统的一般情况，这可以超过受原始版本的限制。迄今为止，尚未进行实验验证来验证这种强壮的悖论，因为以前的大多数实验工作都限于二维系统。在这里，基于两光子高维轨道角动量（OAM）纠缠，我们报告了第一个实验，以证明用于多种环境和多种结果的Hardy悖论。我们证明了两步的高维OAM子空间的悖论，最高为d = 7，这表明非局部事件随尺寸而增加。此外，我们通过实验记录的概率为36.77％的五个设定的三维OAM子空间通过纠缠浓度展示了非局部性，从而显示出量子力学与经典理论之间的矛盾。
Characterizing high-dimensional entangled states is of crucial importance in quantum information science and technology. Recent theoretical progress has been made to extend the Hardy's paradox into a general scenario with multisetting multidimensional systems, which can surpass the bound limited by the original version. Hitherto, no experimental verification has been conducted to verify such a Hardy's paradox, as most of previous experimental efforts were restricted to two-dimensional systems. Here, based on two-photon high-dimensional orbital angular momentum (OAM) entanglement, we report the first experiment to demonstrate the Hardy's paradox for multiple settings and multiple outcomes. We demonstrate the paradox for two-setting higher-dimensional OAM subspaces up to d = 7, which reveals that the nonlocal events increase with the dimension. Furthermore, we showcase the nonlocality with an experimentally recording probability of 36.77% for five-setting three-dimensional OAM subspace via entanglement concentration, and thus showing a sharper contradiction between quantum mechanics and classical theory.
