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

Antariksha Das; Mohsen F. Askarani; Jacob H. Davidson; Gustavo C. Amaral; Neil Sinclair; Joshua A. Slater; Sara Marzban; Daniel Oblak; Wolfgang Tittel

doi:10.1117/12.2620943

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

Antariksha Das^*, Mohsen F. Askarani, Jacob H. Davidson, Gustavo C. Amaral, Neil Sinclair, Joshua A. Slater, Sara Marzban, Daniel Oblak, Wolfgang Tittel

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › Scientific › peer-review

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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.

Original language	English
Number of pages	7
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	12133
DOIs	https://doi.org/10.1117/12.2620943
Publication status	Published - 2022
Event	Quantum Technologies 2022 - Virtual, Online Duration: 9 May 2022 → 20 May 2022

Keywords

Quantum Memory
Quantum Repeater
Rare-earth-ion-doped Crystal

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title = "A long-lived spectrally multiplexed solid-state optical quantum memory for high-rate quantum repeaters",

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.",

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author = "Antariksha Das and Askarani, {Mohsen F.} and Davidson, {Jacob H.} and Amaral, {Gustavo C.} and Neil Sinclair and Slater, {Joshua A.} and Sara Marzban and Daniel Oblak and Wolfgang Tittel",

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doi = "10.1117/12.2620943",

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journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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AU - Das, Antariksha

AU - Askarani, Mohsen F.

AU - Davidson, Jacob H.

AU - Amaral, Gustavo C.

AU - Sinclair, Neil

AU - Slater, Joshua A.

AU - Marzban, Sara

AU - Oblak, Daniel

AU - Tittel, Wolfgang

PY - 2022

Y1 - 2022

N2 - 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.

AB - 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.

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JO - Proceedings of SPIE - The International Society for Optical Engineering

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T2 - Quantum Technologies 2022

Y2 - 9 May 2022 through 20 May 2022

ER -

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

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