AI 中文总结
研究旨在创建工作于电信波长的手性量子界面，通过将InAs量子点与InP微盘连接，利用强磁场调节量子点跃迁，实现了近乎理想的手性量子耦合，为集成光子器件的量子信息处理提供了支持。
AI 中文摘要
手性量子光-物质界面中量子发射器的内部自旋状态决定其发射方向，是不可逆量子器件、确定性量子逻辑门和纠缠生成协议的基本构建块。然而，尚未存在工作于电信波长且与电信基础设施和硅光子学兼容的手性量子界面。本文报道了在原始电信频段（1260 - 1360 nm）的集成手性量子界面，通过将砷化铟量子点与波导耦合的磷化铟微盘连接而成。利用强磁场通过光子腔调节量子点跃迁，观测到腔增强峰值为3.3，发射方向性为0.985，证明了集成光子器件上量子信息处理所需的近乎理想的手性量子耦合。
英文摘要
Chiral quantum light-matter interfaces, where the internal spin state of a quantum emitter determines the direction in which it emits, are essential building blocks of non-reciprocal quantum devices, deterministic quantum logical gates and entanglement generation protocols. Yet, a chiral quantum interface that operates at telecom wavelengths, and is compatible with telecommunication infrastructure and silicon photonics, does not yet exist. Here, we report on an integrated chiral quantum interface in the original telecom band (1260-1360 nm), created by interfacing InAs quantum dots with a waveguide-coupled InP microdisk. We tune the quantum dot transitions through the photonic cavity using a strong magnetic field, observing a peak cavity enhancement of 3.3 and an emission directionality of 0.985, demonstrating the near-ideal chiral quantum coupling required for quantum information processing on integrated photonic devices.
Comments7 pages, 4 figures
