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Highly-efficient quantum memory for polarization qubits in a spatially-multiplexed cold atomic ensemble

Vernaz-Gris, Pierre; Huang, Kun; Cao, Mingtao; Sheremet, Alexandra S; Laurat, Julien


Quantum memory for flying optical qubits is a key enabler for a wide range of applications in quantum information. A critical figure of merit is the overall storage and retrieval efficiency. So far, despite the recent achievements of efficient memories for light pulses, the storage of qubits has suffered from limited efficiency. Here we report on a quantum memory for polarization qubits that combines an average conditional fidelity above 99% and efficiency around 68%, thereby demonstrating a...[Show more]

CollectionsANU Research Publications
Date published: 2018
Type: Journal article
Source: Nature Communications
DOI: 10.1038/s41467-017-02775-8
Access Rights: Open Access


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