论文标题
用量子涡流光子状态转向检测漏洞封闭
Quantum steering with vector vortex photon states with the detection loophole closed
论文作者
论文摘要
违反非局部性不平等实现了最强大的远程量子信息任务和量子物理学的基本测试。通过极化诱导的光子对实现了无漏的光子验证，但没有在其他自由度纠缠的状态下实现。在这里，我们证明了量子转向非局部性任务的完成，当检测漏洞封闭时，当纠缠是通过在光学轨道角动量（OAM）和极化形成的光学矢量涡流状态下传输光子来分布的。除了打开超出两极分化的高效编码外，矢量涡流转向的至关重要的演示为新的自由空间和基于卫星的安全量子通信设备和设备无关的协议打开了大门。
Violating a nonlocality inequality enables the most powerful remote quantum information tasks and fundamental tests of quantum physics. Loophole-free photonic verification of nonlocality has been achieved with polarization-entangled photon pairs, but not with states entangled in other degrees of freedom. Here we demonstrate completion of the quantum steering nonlocality task, with the detection loophole closed, when entanglement is distributed by transmitting a photon in an optical vector vortex state, formed by optical orbital angular momentum (OAM) and polarization. As well as opening up a high-efficiency encoding beyond polarization, the critically-important demonstration of vector vortex steering opens the door to new free-space and satellite-based secure quantum communication devices and device-independent protocols.
