论文标题
部分可观测时空混沌系统的无模型预测
Preparing Remote States for Genuine Quantum Networks
论文作者
论文摘要
量子网络通常包含量子通道，中继器和结束节点。远程状态准备（RSP）允许一端节点远程准备另一端节点的状态。尽管量子不和谐已被认为是RSP所必需的，但它不能保证RSP在量子网络中的实际实现超过任何经典方法。本文中，我们从理论上介绍并实验研究了我们称为RSP功能的量子资源。该资源验证了启用真正的量子网络所需的所有静态和动态元素，其中RSP的实现可以胜过任何纠缠和Qubit-非军事策略的经典仿真，包括Einstein-Podolsky-Rosen-Rosen-Rosen对的静态资源，以及量子渠道和报道者的动态资源和动态资源。我们的实验测量了RSP能力，以证明经典RSP和非经典RSP之间的过渡，具体取决于光子对品质。它表明量子不和谐无法确认非经典RSP，而是RSP功能。这些结果有助于揭示网络RSP发挥作用时出现的量子优势。
Quantum networks typically comprise quantum channels, repeaters, and end nodes. Remote state preparation (RSP) allows one end node to prepare the states of the other end nodes remotely. While quantum discord has recently been recognized as necessary for RSP, it does not guarantee the practical implementation of RSP in quantum networks surpasses any classical method. Herein, we theoretically introduce and experimentally study a quantum resource that we call the RSP capability. This resource validates all the static and dynamic elements required to enable genuine quantum networks where the RSP's implementation can outperform any classical emulation of entanglement- and qubit-unitaries-free strategies, including the static resources of Einstein-Podolsky-Rosen pairs and the dynamic resources of quantum channels and repeaters. Our experiment measures the RSP capability to demonstrate the transition between classical and nonclassical RSP depending on the photon-pair qualities. It shows that quantum discord does not confirm a nonclassical RSP, but the RSP capability does. These results help reveal the quantum advantages that emerge when networking RSP is in play.
