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Deterministic storage and retrieval of telecom light from a quantum dot single-photon source interfaced with an atomic quantum memory.

Sarah E ThomasLukas WagnerRaphael JoosRobert SittigCornelius NawrathPaul BurdekinIlse Maillette de Buy WennigerMikhael J RasiahTobias Huber-LoyolaSteven Sagona-StophelSven HöflingMichael JetterPeter MichlerIan A WalmsleySimone Luca PortalupiPatrick M Ledingham
Published in: Science advances (2024)
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.
Keyphrases
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  • working memory
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