Broadband waveguide quantum memory for entangled photons

Erhan Saglamyurek, Neil Sinclair, Jeongwan Jin, Joshua A. Slater, Daniel Oblak, Félix Bussières, Mathew George, Raimund Ricken, Wolfgang Sohler and Wolfgang Tittel ()
Additional contact information
Erhan Saglamyurek: Institute for Quantum Information Science, University of Calgary, 2500 University Drive NW, Calgary, Alberta. T2N 1N4, Canada
Neil Sinclair: Institute for Quantum Information Science, University of Calgary, 2500 University Drive NW, Calgary, Alberta. T2N 1N4, Canada
Jeongwan Jin: Institute for Quantum Information Science, University of Calgary, 2500 University Drive NW, Calgary, Alberta. T2N 1N4, Canada
Joshua A. Slater: Institute for Quantum Information Science, University of Calgary, 2500 University Drive NW, Calgary, Alberta. T2N 1N4, Canada
Daniel Oblak: Institute for Quantum Information Science, University of Calgary, 2500 University Drive NW, Calgary, Alberta. T2N 1N4, Canada
Félix Bussières: Institute for Quantum Information Science, University of Calgary, 2500 University Drive NW, Calgary, Alberta. T2N 1N4, Canada
Mathew George: University of Paderborn, Warburger Strasse 100, 33095 Paderborn, Germany
Raimund Ricken: University of Paderborn, Warburger Strasse 100, 33095 Paderborn, Germany
Wolfgang Sohler: University of Paderborn, Warburger Strasse 100, 33095 Paderborn, Germany
Wolfgang Tittel: Institute for Quantum Information Science, University of Calgary, 2500 University Drive NW, Calgary, Alberta. T2N 1N4, Canada

Nature, 2011, vol. 469, issue 7331, 512-515

Abstract: Solid quantum memory progress Harnessing entanglement between light and material systems is of interest for future quantum information technologies. Two groups report advances in the development of the light–matter quantum interface that could pave the way for the construction of multiplexed quantum repeaters for long-distance quantum networks. Clausen et al. demonstrate entanglement between a photon at the telecommunication wavelength (1,338 nanometres) and a single collective atomic excitation stored in a neodymium-doped Y2SiO5 crystal. Saglamyurek et al. use a thulium-doped LiNbO3 waveguide to achieve a similar entanglement.

Date: 2011
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DOI: 10.1038/nature09719

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