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MON: Monday Contributed Sessions

MON 23: Poster Session: Fundamental Aspects and Model Systems

MON 23.17: Poster

Montag, 8. September 2025, 18:30–20:30, ZHG Foyer 1. OG

Photonic simulation optimized for quantum field dynamics — •Robin Alexander Strahlendorf, Mauro D'Achille, and Martin Gärttner — Institut für Festkörpertheorie und Optik, Friedrich-Schiller-Universität Jena, Max-Wien Platz 1 07743 Jena

Photonic multimode systems offer great potential as quantum simulators of quantum field theories. The dynamics of free field theories, corresponding to quadratic Hamiltonians, can be decomposed into a sequence of passive optical elements and squeezing transformation. It is difficult to scale an optical circuit to large number of modes and depths due to the inherent loss of the optical elements.

We tackle this problem by exploiting the freedom in designing an optical circuit for a given unitary evolution. In particular, we aim to minimize the number of gates, thereby reducing the overall simulation error. For this, we simulate realistic noise models and compare the robustness of the different decomposition schemes with respect to common types of errors.

Keywords: quantum simulation; quantum optics; quantum field theory; Photonic multimode systems; quantum information