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Q: Fachverband Quantenoptik und Photonik

Q 56: Quantum Optics and Control I

Q 56.5: Vortrag

Donnerstag, 5. März 2026, 15:45–16:00, P 3

Single- and many-body interference in a generalized Mach- Zehnder interferometer — •Farouk Albalacy, Gabriel Dufour, and Andreas Buchleitner — Physikalisches Institut & EUCOR Centre for Quantum Science and Quantum Computing, Albert- Ludwigs-Universität Freiburg

We study the interplay of single- and many-body interference effects by injecting one quantum object per port in a generalized Mach-Zehnder interferometer with three ports. Single-body interference is controlled by the phase shifts between the paths of the interferometer. The effect of bosonic many-body interference is singled out by tuning the individual constituents' mutual distinguishabilities through their internal states. We analyze the output counting statistics for three partially distinguishable bosons, as a function of their internal states and of the interferometer phases.

Keywords: Many-body interference; Mach-Zehnder interferometer; Partial distinguishability