Carbon Nanotubes as Cooper Pair Beam Splitters

L.G. Herrmann , F. Portier , P. Roche , A. Levy Yeyati , T. Kontos , C. Strunk

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classification ❄️ cond-mat.mes-hall

keywords beamcarbonquantumsplittersandreevavenuecentralconductance

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We report on conductance measurements in carbon nanotube based double quantum dots connected to two normal electrodes and a central superconducting finger. By operating our devices as beam splitters, we provide evidence for Crossed Andreev Reflections \textit{tunable in situ}. This opens an avenue to more sophisticated quantum optics-like experiments with spin entangled electrons.

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Carbon Nanotubes as Cooper Pair Beam Splitters

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