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arXiv · 1505.03470

Practical Quantum Repeaters with Parametric Down-Conversion Sources

Hari Krovi·Saikat Guha·Zachary Dutton·Joshua A. Slater·Christoph Simon·Wolfgang Tittel
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Abstract

Conventional wisdom suggests that realistic quantum repeaters will require quasi-deterministic sources of entangled photon pairs. In contrast, we here study a quantum repeater architecture that uses simple parametric down-conversion sources, as well as frequency-multiplexed multimode quantum memories and photon-number resolving detectors. We show that this approach can significantly extend quantum communication distances compared to direct transmission. This shows that important trade-offs are possible between the different components of quantum repeater architectures.

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Hari Krovi, Saikat Guha, Zachary Dutton, Joshua A. Slater, Christoph Simon, Wolfgang Tittel. 2015-05-13. Practical Quantum Repeaters with Parametric Down-Conversion Sources. https://doi.org/10.1007/s00340-015-6297-4

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