Rostock 2019 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 22: Quantum Optics I

Q 22.2: Talk

Monday, March 11, 2019, 16:30–16:45, S Gr. HS Maschb.

Observation of Hong-Ou-Mandel-interference in PT-symmetry — •Friederike Klauck, Lucas Teuber, Marco Ornigotti, Matthias Heinrich, Stefan Scheel, and Alexander Szameit — Universität Rostock, Institut für Physik, Albert-Einstein-Str. 23, 18055 Rostock

A broad variety of Parity-Time-symmetric systems and classical effects has been studied in photonics. However, the field of PT-symmetric quantum optics is left uncharted to this day. Here, we report on the first observation of quantum multi-particle interference in a lossy directional coupler. We achieve a Hong-Ou-Mandel dip with a visibility of 90 ± 4 % and find that the antisymmetric loss distribution in the system systematically shift the interference in towards shorter propagation distances.