Hybrid quantum repeater based on resonant qubit-field interactions

Abstract

We propose a hybrid quantum repeater based on ancillary coherent field states and material qubits coupled to optical cavities. For this purpose, resonant qubit-field interactions and postselective field measurements are determined which are capable of realizing all necessary two-qubit operations for the actuation of the quantum repeater. We explore both theoretical and experimental possibilities of generating near-maximally-entangled qubit pairs ($F>0.999$) over long distances. It is shown that our scheme displays moderately low repeater rates, between $5\times 10^{-4}$ and $23$ pairs per second, over distances up to $900$ km, and it relies completely on current technology of cavity quantum electrodynamics.

18 pages, 13 figures, corrected according to published Erratum

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Cited by in corpus (5)

• Advances in Quantum Cryptography
• Atomic Bell measurement via two-photon interactions
• Entangling operations in nonlinear two-atom Tavis-Cummings models
• Distributed entangled state production by using quantum repeater protocol
• Optimal two-qubit gates in recurrence protocols of entanglement purification