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arXiv · 2401.17088

Hanbury Brown and Twiss interference of electrons in free space from independent needle tip sources

Anton Classen·Raul Corrêa·Florian Fleischmann·Simon Semmler·Marc-Oliver Pleinert·Peter Hommelhoff·Joachim von Zanthier
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Abstract

We investigate two-electron interference in free space using two laser-triggered needle tips as independent electron sources, a fermionic realisation of the landmark Hanbury Brown and Twiss interferometer. We calculate the two-electron interference pattern in a quantum path formalism taking into account the fermionic nature and the spin configuration of the electrons. We also estimate the Coulomb repulsion in the setup in a semiclassical approach. We find that antibunching resulting from Pauli's exclusion principle and repulsion stemming from the Coulomb interaction can be clearly distinguished.

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Anton Classen, Raul Corrêa, Florian Fleischmann, Simon Semmler, Marc-Oliver Pleinert, Peter Hommelhoff, Joachim von Zanthier. 2024-01-30. Hanbury Brown and Twiss interference of electrons in free space from independent needle tip sources. https://doi.org/10.1088/1367-2630/addc8c

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