Regensburg 2025 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 20: Many-body Quantum Dynamics II (joint session DY/TT)

DY 20.1: Talk

Wednesday, March 19, 2025, 09:30–09:45, H37

The Sound of Entanglement — •Benjamin Orthner¹, Clemens Wenger⁵, Johannes Kofler², Richard Küng², Enar de Dios Rodríguez³, Martin Ringbauer⁴, Alexander Ploier², and Philipp Haslinger¹ — ¹Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, Vienna, Austria — ²Johannes Kepler University Linz, Austria — ³Internationale Forschungszentrum Kulturwissenschaften, Kunstuniversität Linz, Austria — ⁴University of Innsbruck, Austria — ⁵Universität für Musik und darstellende Kunst Graz, Austria

This contribution presents The Sound of Entanglement, a project at the intersection of quantum physics, music, and visual art. At its core lies a Bell experiment setup, where polarization-entangled photon pairs are generated through spontaneous parametric down-conversion in a β-BBO crystal. The experiment acts as a quantum conductor, utilizing the quantum correlations between the photons to coordinate and influence the choices of live musicians in real-time, creating a performance guided by principles beyond classical physics.

This work seeks to make these abstract concepts more accessible and engaging to broader audiences by transforming them into tangible, sensory experiences. By combining live music with a dynamic light show, both controlled by the experiment, this project illustrates how advancements in technology, like those shaping the second quantum revolution, can redefine artistic expression and bridge the gap between science and art.

Keywords: Quantum Entanglement; Bell Experiment; Aleatoric Music; Interdisciplinary Art; Spontaneous Parametric Down Conversion