Scientific article
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English

Coherent frequency-down-conversion interface for quantum repeaters

Published inOptics express, vol. 18, no. 21, p. 22099-22104
Publication date2010
Abstract

We report a coherence-preserving photon frequency down-conversion experiment based on difference-frequency generation in a periodically poled Lithium niobate waveguide, at the single-photon level. The coherence of the process has been demonstrated by measuring the phase coherence of pseudo single-photon time-bin qubits after frequency conversion with an interference visibility of >96 %. This interface could be of interest for quantum repeater based hybrid networks.

Citation (ISO format)
CURTZ, Noe et al. Coherent frequency-down-conversion interface for quantum repeaters. In: Optics express, 2010, vol. 18, n° 21, p. 22099–22104. doi: 10.1364/OE.18.022099
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Journal ISSN1094-4087
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