Mainz 2026 – scientific programme
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A: Fachverband Atomphysik
A 3: Collisions, Scattering and Correlation Phenomena I (joint session A/MO)
A 3.4: Talk
Monday, March 2, 2026, 12:30–12:45, N 2
The interplay between single- and two-body interference of photoelectrons — •Fabian Rohrbach1, Andreas Buchleitner1,2, and Christoph Dittel1,2 — 1Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, Hermann-Herder-Straße 3, 79104 Freiburg, Germany — 2EUCOR Centre for Quantum Science and Quantum Computing, Albert-Ludwigs-Universität Freiburg, Hermann-Herder-Straße 3, 79104 Freiburg, Germany
We clarify under which conditions fermionic exchange (anti-) symmetry manifests in the energy spectrum of photoelectrons generated by pulsed light interacting with matter, and how such signature can be discriminated against anticorrelations potentially arising from Coulomb repulsion. We demonstrate that photoelectrons emitted from two metal needle tips exhibit pronounced two-body interference fringes, and analyze how these features interplay with interference on the single-electron level, along different pathways in a pump–probe ionization scheme.
Keywords: Photoelectrons; Electron interference; Two-particle interference; Nanotips