Robust quantum repeater with atomic ensembles against phase and polarization instability

Details Robust quantum repeater with atomic ensembles against phase and polarization instability Robust quantum repeater with atomic ensembles against phase and polarization instability

2009-03-11

arxiv.org/abs/0903.1977v1

Physics

Quantum Physics

4 pages, 2 figures, to appear in Phys. Rev. A

Scientific paper

10.1103/PhysRevA.79.042301

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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