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

Classen A, Corrêa R, Fleischmann F, Semmler S, Pleinert MO, Hommelhoff P, von Zanthier J (2025)

Publication Type: Journal article

Publication year: 2025

Journal

New Journal of Physics Institute of Physics: Open Access Journals / Institute of Physics (IoP) and Deutsche Physikalische Gesellschaft

Book Volume: 27

Article Number: 064105

Journal Issue: 6

DOI: 10.1088/1367-2630/addc8c

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.

Authors with CRIS profile

Anton Classen Quantum Optics & Quantum Information (QOQI) Florian Fleischmann Quantum Optics & Quantum Information (QOQI) Marc-Oliver Pleinert Quantum Optics & Quantum Information (QOQI) Peter Hommelhoff Lehrstuhl für Laserphysik Joachim von Zanthier Quantum Optics & Quantum Information (QOQI)

Involved external institutions

Universidade Federal de Minas Gerais (UFMG)

Brazil (BR)

How to cite

APA:

Classen, A., Corrêa, R., Fleischmann, F., Semmler, S., Pleinert, M.-O., Hommelhoff, P., & von Zanthier, J. (2025). Hanbury Brown and Twiss interference of electrons in free space from independent needle tip sources. New Journal of Physics, 27(6). https://doi.org/10.1088/1367-2630/addc8c

MLA:

Classen, Anton, et al. "Hanbury Brown and Twiss interference of electrons in free space from independent needle tip sources." New Journal of Physics 27.6 (2025).

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