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Q: Fachverband Quantenoptik und Photonik

Q 37: Poster III

Q 37.7: Poster

Wednesday, March 13, 2024, 17:00–19:00, Tent B

Characterization of squeezing sources using Hong-Ou-Mandel interference measurements — •Florian Lütkewitte, Kai Hong Luo, Michael Stefszky, Benjamin Brecht, and Christine Silberhorn — Paderborn University, Integrated Quantum Optics, Institute of Photonic Quantum Systems (PhoQS), Warburger Str. 100, 33098, Paderborn, Germany

Gaussian boson sampling (GBS) is a promising platform for demonstrating photonic quantum advantage and noisy intermediate-scale quantum computing. The performance of such systems depends on the ability to produce high-quality single-mode squeezed states. One can produce such states by interfering the two modes of a decorrelated, indistinguishable two-mode squeezed state generated in potassium titanyl phosphate waveguides on a balanced beam splitter. However, one needs to confirm that the generated states reach the qualities required for these highly demanding applications. In this work, we investigate the possibilities and limitations of using Hong-Ou-Mandel interference as a characterization method for these squeezed light sources.

Keywords: squeezed states; Hong-Ou-Mandel; characterization; parametric down-conversion