论文标题
两个量子点可扩展的确定性整合到芯片量子电路中
Scalable deterministic integration of two quantum dots into an on-chip quantum circuit
论文作者
论文摘要
具有确定性集成的量子发射器的集成量子光电电路（IQPC）是可扩展量子信息应用的关键要素，并且近年来引起了极大的关注。但是，将它们扩展到具有多个确定性集成的量子发射器以生成光子输入状态的功能齐全的光子电路仍然是一个巨大的挑战。在这项工作中，我们报告了一个单层原型IQPC，该原型由两个预选的量子点确定性地集成到2x2多模具干扰梁示出的输入端口处的纳米孔腔。片上束分离器的分裂比为近50/50，集成的量子发射器具有很高的单光子纯度，可以实现芯片HBT实验，描述了确定性的可伸缩性。总体而言，这标志着朝着可扩展和功能齐全的IQPC的基石。
Integrated quantum photonic circuits (IQPCs) with deterministically integrated quantum emitters are critical elements for scalable quantum information applications and have attracted significant attention in recent years. However, scaling up them towards fully functional photonic circuits with multiple deterministically integrated quantum emitters to generate photonic input states remains a great challenge. In this work, we report on a monolithic prototype IQPC consisting of two pre-selected quantum dots deterministically integrated into nanobeam cavities at the input ports of a 2x2 multimode interference beam-splitter. The on-chip beam splitter exhibits a splitting ratio of nearly 50/50 and the integrated quantum emitters have high single-photon purity, enabling on-chip HBT experiments, depicting deterministic scalability. Overall, this marks a cornerstone toward scalable and fully-functional IQPCs.
