Print Email Facebook Twitter A long-lived spectrally multiplexed solid-state optical quantum memory for high-rate quantum repeaters Title A long-lived spectrally multiplexed solid-state optical quantum memory for high-rate quantum repeaters Author Das, A. (TU Delft QID/Tittel Lab; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft) Falamarzi Askarani, M. (TU Delft QID/Tittel Lab; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft) Davidson, J.H. (TU Delft QuTech Advanced Research Centre; TU Delft QID/Tittel Lab; Kavli institute of nanoscience Delft) Castro do Amaral, G. (TU Delft BUS/TNO STAFF; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft) Sinclair, Neil (Harvard School of Engineering and Applied Sciences; California Institute of Technology) Slater, J.A. (TU Delft QuTech Advanced Research Centre; TU Delft BUS/Spider) Marzban, S. (TU Delft QuTech Advanced Research Centre; TU Delft QID/Tittel Lab; Kavli institute of nanoscience Delft) Oblak, Daniel (University of Calgary) Tittel, W. (TU Delft QuTech Advanced Research Centre; TU Delft Quantum Communications Lab; TU Delft QID/Tittel Lab; Kavli institute of nanoscience Delft; Université de Genève; Schaffhausen Institute of Technology - SIT) Date 2022 Abstract Long optical storage times are an essential requirement to establish high-rate entanglement distribution over large distances using memory-based quantum repeaters. Rare earth ion-doped crystals are arguably well-suited candidates for building such quantum memories. Toward this end, we investigate the 795.32 nm 3H6 ↔ 3H4 transition of 1% thulium-doped yttrium gallium garnet crystal (Tm3+:Y3Ga5O12 : Tm3+:YGG). Most essentially, we find that the optical coherence time can reach 1.1 ms, and, using laser pulses, we demonstrate optical storage based on the atomic frequency comb (AFC) protocol up to 100 µs. In addition, we demonstrate multiplexed storage, including feed-forward selection, shifting, and filtering of spectral modes, as well as quantum state storage using members of non-classical photon pairs. Our results show that Tm:YGG can be a potential candidate for creating multiplexed quantum memories with long optical storage times. Subject Quantum MemoryQuantum RepeaterRare-earth-ion-doped Crystal To reference this document use: http://resolver.tudelft.nl/uuid:31dc0de1-4051-4fdb-b105-d9493f9e1e9a DOI https://doi.org/10.1117/12.2620943 ISSN 0277-786X Source Proceedings of SPIE - The International Society for Optical Engineering, 12133 Event Quantum Technologies 2022, 2022-05-09 → 2022-05-20, Virtual, Online Part of collection Institutional Repository Document type journal article Rights © 2022 A. Das, M. Falamarzi Askarani, J.H. Davidson, G. Castro do Amaral, Neil Sinclair, J.A. Slater, S. Marzban, Daniel Oblak, W. Tittel Files PDF 1213305.pdf 776.22 KB Close viewer /islandora/object/uuid:31dc0de1-4051-4fdb-b105-d9493f9e1e9a/datastream/OBJ/view