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arXiv · 1404.0030

Partitioning of on-demand electron pairs

Niels Ubbelohde·Frank Hohls·Vyacheslavs Kashcheyevs·Timo Wagner·Lukas Fricke·Bernd Kästner·Klaus Pierz·Hans W. Schumacher·Rolf J. Haug
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Abstract

We demonstrate the high fidelity splitting of electron pairs emitted on demand from a dynamic quantum dot by an electronic beam splitter. The fidelity of pair splitting is inferred from the coincidence of arrival in two detector paths probed by a measurement of the partitioning noise. The emission characteristic of the on-demand electron source is tunable from electrons being partitioned equally and independently to electron pairs being split with a fidelity of 90%. For low beam splitter transmittance we further find evidence of pair bunching violating statistical expectations for independent fermions.

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Niels Ubbelohde, Frank Hohls, Vyacheslavs Kashcheyevs, Timo Wagner, Lukas Fricke, Bernd Kästner, Klaus Pierz, Hans W. Schumacher, Rolf J. Haug. 2014-03-31. Partitioning of on-demand electron pairs. https://doi.org/10.1038/nnano.2014.275

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