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DOE OSTI · 1906473

Field-Deployable Quantum Memory for Quantum Networking

Wang, Yang·Craddock, Alexander N.·Sekelsky, Rourke·Flament, Mael·Namazi, Mehdi
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Abstract

High-performance quantum memories are an essential component for regulating temporal events in quantum networks. As a component in quantum-repeaters, they have the potential to support the distribution of entanglement beyond the physical limitations of fiber loss. This will enable key applications such as quantum key distribution, network-enhanced quantum sensing, and distributed quantum computing. Here, we present a quantum memory engineered to meet real-world deployment and scaling challenges. The memory technology utilizes a warm rubidium vapor as the storage medium, and operates at room temperature, without the need for vacuum- and/or cryogenic- support. Here, we demonstrate performance specifications of high-fidelity retrieval (95%) and low operation error (10 –2 ) at a storage time of 160 µs for single-photon level quantum memory operations. We further show a substantially improved storage time (with classical-level light) of up to 1ms by suppressing atomic diffusions. The device is housed in an enclosure with a standard 2U rackmount form factor, and can robustly operate on a day scale in a noisy environment. This result marks an important step toward implementing quantum networks in the field.

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71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS74 ATOMIC AND MOLECULAR PHYSICSelectromagnetically induced transparentlyquantum bufferquantum memoryquantum storage

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BibTeXRIS

Wang, Yang, Craddock, Alexander N., Sekelsky, Rourke, Flament, Mael, Namazi, Mehdi. 2022-10-25. Field-Deployable Quantum Memory for Quantum Networking. https://doi.org/10.1103/physrevapplied.18.044058

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