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arXiv · 0903.1977

Robust quantum repeater with atomic ensembles against phase and polarization instability

Ming Gao·Lin-Mei Liang·Cheng-Zu Li·Xiang-Bin Wang
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Abstract

We propose an alternative scheme for quantum repeater without phase stabilization and polarization calibration of photons transmitted over long-distance channel. We introduce time-bin photonic states and use a new two-photon interference configuration to robustly generate entanglement between distant atomic-ensemble-based memory qubits. Our scheme can be performed with current experimental setups through making some simple adjustments.

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Ming Gao, Lin-Mei Liang, Cheng-Zu Li, Xiang-Bin Wang. 2009-03-11. Robust quantum repeater with atomic ensembles against phase and polarization instability. https://doi.org/10.1103/physreva.79.042301

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