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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Giant atoms with engineered multi-point couplings to waveguides enable deterministic passive quantum state transfer, with optimized fidelities of 87% for two points and over 99% for ten or more.
A nonlinear criterion detects coherence transfer in quantum networks with only two measurements of network-state populations, remaining valid even with uncharacterized checkpoint nodes, and is experimentally shown in four- and six-photon entanglement networks.
Shaped mirrors in plano-concave cavities increase central emitter coupling by up to an order of magnitude in simulations, matching concave-concave performance with better alignment tolerance.
citing papers explorer
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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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Enabling Deterministic Passive Quantum State Transfer with Giant Atoms
Giant atoms with engineered multi-point couplings to waveguides enable deterministic passive quantum state transfer, with optimized fidelities of 87% for two points and over 99% for ten or more.
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Coherence Transfer in Quantum Networks
A nonlinear criterion detects coherence transfer in quantum networks with only two measurements of network-state populations, remaining valid even with uncharacterized checkpoint nodes, and is experimentally shown in four- and six-photon entanglement networks.
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Advanced mirror shapes for mode enhancement in plano-concave cavities
Shaped mirrors in plano-concave cavities increase central emitter coupling by up to an order of magnitude in simulations, matching concave-concave performance with better alignment tolerance.