A hybrid interface of solid-state single-photon sources and atomic quantum memories is a long sought-after goal in photonic quantum technologies. Here, we demonstrate deterministic storage and retrieval of light from a semiconductor quantum dot in an atomic ensemble quantum memory at telecommunications wavelengths. We store single photons from an indium arsenide quantum dot in a high-bandwidth rubidium vapor–based quantum memory, with a total internal memory efficiency of (12.9 ± 0.4)%. The signal-to-noise ratio of the retrieved light field is 18.2 ± 0.6, limited only by detector dark counts.

中文翻译：

---

来自与原子量子存储器连接的量子点单光子源的电信光的确定性存储和检索

固态单光子源和原子量子存储器的混合接口是光子量子技术中长期以来备受追捧的目标。在这里，我们演示了在电信波长下原子系综量子存储器中半导体量子点的光的确定性存储和检索。我们将来自砷化铟量子点的单光子存储在基于高带宽铷蒸气的量子存储器中，总内部存储器效率为（12.9±0.4）％。检索到的光场的信噪比为 18.2 ± 0.6，仅受探测器暗计数的限制。