Freiburg 2024 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 55: Poster VI

Q 55.47: Poster

Thursday, March 14, 2024, 17:00–19:00, Tent B

Squeezed States for Gaussian Boson Sampling From a KTP Waveguide Resonator — •Jonas Sichler, Christine Silberhorn, and Michael Stefszky — Paderborn University, Integrated Quantum Optics, Institute of Photonic Quantum Systems (PhoQS), Warburger Str. 100, 33098 Paderborn, Germany

Gaussian boson sampling (GBS) stands at the forefront of quantum computational research, offering the possibility of demonstrating quantum computational advantage and may also be suitable for solving complex problems beyond the reach of classical computers. The generation of suitable squeezed states is essential in harnessing the quantum advantages of this architecture, but is a technically challenging feat.

Here, we investigate the possibility of producing the required single-spectral mode, single-mode squeezed states using a resonator assisted type 0 parametric down-conversion (PDC) process in KTP waveguides. We present our findings on cavity parameter optimisation and initial experimental results.

Keywords: Gaussian Boson Sampling; Parametric down conversion; Squeezed states