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Ultrafast Coherent Coupling of Atomic Hyperfine and Photon Frequency Qubits

M. J. Madsen·D. L. Moehring·P. Maunz·R. N. Kohn Jr.·L. -M. Duan·C. Monroe
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Abstract

We demonstrate ultrafast coherent coupling between an atomic qubit stored in a single trapped cadmium ion and a photonic qubit represented by two resolved frequencies of a photon. Such ultrafast coupling is crucial for entangling networks of remotely-located trapped ions through photon interference, and is also a key component for realizing ultrafast quantum gates between Coulomb-coupled ions.

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M. J. Madsen, D. L. Moehring, P. Maunz, R. N. Kohn Jr., L. -M. Duan, C. Monroe. 2006-04-07. Ultrafast Coherent Coupling of Atomic Hyperfine and Photon Frequency Qubits. https://arxiv.org/abs/quant-ph/0603258

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