发表机构
National Central University; Massachusetts Institute of Technology; The University of Tokyo; National Tsing Hua University（中央大学; 麻省理工学院; 东京大学; 国立清华大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究提出利用一对可调谐超导量子比特形成的有效$\Lambda$型系统，通过动态失谐控制实现量子光的存储与按需检索，为可扩展超导量子网络提供了最小且可调谐的量子存储架构。
AI 中文摘要
我们从理论上研究了由一对可调谐超导量子比特耦合到半无限传输线并相隔半个波长所形成的有效$\Lambda$型系统中的量子光存储。量子比特之间的频率失谐直接耦合超辐射激发态和亚辐射亚稳态。通过调节量子比特失谐，系统表现出可控的光谱响应，并伴随慢光行为。动态控制失谐使得入射量子场能够被映射到亚辐射集体态上，作为长寿命激发存储，并随后按需检索。我们的结果确立了所提出的系统作为可扩展超导量子网络的最小且可调谐的量子存储架构。
英文摘要
We theoretically investigate quantum-light storage in an effective $Λ$-type system formed by a pair of tunable superconducting qubits coupled to a semi-infinite transmission line and separated by half a wavelength. The frequency detuning between the qubits directly couples the superradiant excited state and the subradiant metastable state. By adjusting the qubit detuning, the system exhibits a controllable spectral response accompanied by slow-light behavior. Dynamically controlling the detuning enables an incident quantum field to be mapped onto the subradiant collective state, stored as a long-lived excitation, and subsequently retrieved on demand. Our results establish the proposed system as a minimal and tunable quantum-memory architecture for scalable superconducting quantum networks.
Comments6 pages, 3 figures
