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A long-lived spectrally multiplexed solid-state optical quantum memory for high-rate quantum repeaters

Authors :
Diamanti, Eleni
Ducci, Sara
Treps, Nicolas
Whitlock, Shannon
Das, Antariksha
Askarani, Mohsen F.
Davidson, Jacob H.
Amaral, Gustavo C.
Sinclair, Neil
Slater, Joshua A.
Marzban, Sara
Oblak, Daniel
Thiel, Charles W.
Cone, Rufus L.
Tittel, Wolfgang
Diamanti, Eleni
Ducci, Sara
Treps, Nicolas
Whitlock, Shannon
Das, Antariksha
Askarani, Mohsen F.
Davidson, Jacob H.
Amaral, Gustavo C.
Sinclair, Neil
Slater, Joshua A.
Marzban, Sara
Oblak, Daniel
Thiel, Charles W.
Cone, Rufus L.
Tittel, Wolfgang
Publication Year :
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.

Details

Database :
OAIster
Notes :
application/pdf, A long-lived spectrally multiplexed solid-state optical quantum memory for high-rate quantum repeaters, English
Publication Type :
Electronic Resource
Accession number :
edsoai.on1346381630
Document Type :
Electronic Resource