Partitioning of on-demand electron pairs

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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Cited by in corpus (72)

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• Phonon emission and arrival times of electrons from a single-electron source
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• Trapping and counting ballistic non-equilibrium electrons
• Duality for open fermion systems: energy-dependent weak coupling and quantum master equations
• Relaxation of quantum dots in a magnetic field at finite bias -- charge, spin and heat currents
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