Mainz 2026 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 70: Quantum Optics and Control II

Q 70.1: Hauptvortrag

Freitag, 6. März 2026, 11:00–11:30, P 3

Totally destructive many-body interference beyond bosons and fermions — •Gabriel Dufour and Andreas Buchleitner — Physikalisches Institut & EUCOR Center for Quantum Science and Quantum Computing, Albert-Ludwigs-Universität Freiburg

The suppression of coincidence events in the Hong-Ou-Mandel experiment is a striking example of totally destructive many-body interference of two bosons. Similar effects have been described for greater numbers of bosons or fermions in larger interferometers. Here, we describe suppressions of certain particle configurations at the output of a Fourier interferometer when the many-body state on input has a specific symmetry under particle exchange, which need not be bosonic or fermionic.

Keywords: Many-body interference; Hong-Ou-Mandel effect; Fourier interferometer; Particle-exchange symmetry