Work

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

Year: 2025

Type: article

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.

Source: New Journal of Physics

DOI: 10.1088/1367-2630/addc8c

Authors: Anton Classen, Raul Corrêa, Florian Fleischmann, Simon Semmler, Marc-Oliver Pleinert, Peter Hommelhoff, Joachim von Zanthier

Institutions: Friedrich-Alexander-Universität Erlangen-Nürnberg, University of Utah, Universidade Federal de Minas Gerais, Ludwig-Maximilians-Universität München

Language: English

Topic: Quantum and electron transport phenomena

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,610

Funders: Gordon and Betty Moore Foundation, Deutsche Forschungsgemeinschaft, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Erlangen Graduate School of Advanced Optical Technologies, Bayerisches Staatsministerium für Wissenschaft und Kunst

Awards: G116629194, Imaging Quantum Coherence with Shaped Electrons (iQCE), G4620633122, G4894200411, G5238074065, TRR 306: Quantenkooperativität von Licht und Materie – QuCoLiMa, G823097665

OpenAlex ID: W4391421403

FWCI: 0.336

Cites: 50

Cited by: 1

Related to: 10