Bidirectional quantum frequency conversion distributes atom-photon entanglement over 24 km of deployed fiber at 1.7% transfer efficiency with fidelity drop under 1%.
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A parabolic mirror on an optical chip forms a compact neutral-atom node that collects photons at 9% efficiency and generates atom-photon entanglement with 0.93 raw Bell fidelity.
Generalization of the one-tangle metric to higher-spin nuclei enables quantification of maximal electron-nuclear entanglement and direct computation of dephasing times in central-spin systems such as (In)GaAs quantum dots.
A framework with operational criteria and a trapped-atom hardware proposal for achieving statistically significant quantum advantage in latency-constrained nonlocal games.
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Metropolitan entanglement distribution between an atom and a near-visible photon
Bidirectional quantum frequency conversion distributes atom-photon entanglement over 24 km of deployed fiber at 1.7% transfer efficiency with fidelity drop under 1%.
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Efficient and compact quantum network node based on a parabolic mirror on an optical chip
A parabolic mirror on an optical chip forms a compact neutral-atom node that collects photons at 9% efficiency and generates atom-photon entanglement with 0.93 raw Bell fidelity.
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Quantifying electron-nuclear spin entanglement dynamics in central-spin systems using one-tangles
Generalization of the one-tangle metric to higher-spin nuclei enables quantification of maximal electron-nuclear entanglement and direct computation of dephasing times in central-spin systems such as (In)GaAs quantum dots.
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Operational criteria for quantum advantage in latency-constrained nonlocal games
A framework with operational criteria and a trapped-atom hardware proposal for achieving statistically significant quantum advantage in latency-constrained nonlocal games.