塑造可调频单光子用于波导量子电动力学中的量子网络
Shaping frequency-tunable single photons for quantum networking in waveguide QED
AI总结：
本文提出通过控制单光子频率实现量子节点间信息交换，解决不同频率限制问题，提供理论框架和实验实现方案，展示频率选择性量子态传输和远程纠缠生成。
摘要：
在量子网络中，量子信息节点间的交换是主要挑战之一。超导波导量子电动力学网络有潜力实现分布式量子计算，其中不同节点通过游走单光子通信。然而，节点间的不同频率限制了其应用和可扩展性。本文推导了控制单光子频率的方案，使其可调至自然频率以外，从而实现按需和确定性的量子信息交换。我们提供了一个理论框架，分析了典型光子形状的控制特性，识别出适合实验实现的操作区域。然后展示了这些控制如何在非共振和远距离节点之间实现频率选择性的量子态传输。此外，我们还提供了一种简单的扩展方案，用于在这些节点之间生成远程纠缠。这些协议的适用性和高保真度由数值模拟支持，突显了塑造可调频单光子解锁的新型网络可能性。
英文摘要：
The exchange of quantum information among nodes in a quantum network is one of the main challenges in modern technologies. Superconducting waveguide QED networks hold great potential for realizing distributed quantum computation, where distinct nodes communicate via itinerant single photons. Yet, different frequencies among the nodes restrict their applicability and limit scalability. Here we derive the controls required to shape single photons arbitrarily detuned with respect to their natural frequency, allowing thus for an on-demand and deterministic exchange of quantum information among frequency detuned nodes. We provide a theoretical framework, analyzing the properties of the controls for typical photon shapes, identifying operation regimes amenable for experimental realization. We then show how these controls enable frequency-selective quantum state transfer among non-resonant and distant nodes of a realistic network. In addition, we also provide a simple extension for remote entanglement generation between these nodes. The suitability and high-fidelity of these protocols is supported by numerical simulations, highlighting the novel networking possibilities unlocked when shaping frequency-tunable single photons.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
