Göttingen 2025 – wissenschaftliches Programm
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DD: Fachverband Didaktik der Physik
DD 32: Poster – Quantenphysik
DD 32.13: Poster
Dienstag, 1. April 2025, 16:15–17:45, ZHG Foyer 1. OG
Supporting problem solving in Quantum Technologies with multiqubit state visualizations — •Jonas Bley1, Eva Rexigel1, Alda Arias1, Lars Krupp1,2, Nikolas Longen1, Paul Lukowicz1,2, Stefan Küchemann3, Jochen Kuhn3, Maximilian Kiefer-Emmanouilidis1, 2, and Artur Widera1 — 1RPTU Kaiserslautern in Kaiserslautern-Landau — 2DFKI Kaiserslautern — 3LMU München
The two-level quantum system, also called a qubit, is at the core of quantum technologies (QT). It finds universal application in all pillars of QT: Sensing, Communication, Computation and Simulation. When learning QT, stakeholders with and without prior training in quantum physics are confronted with complex properties and operations in multi-qubit systems. Visualization is likely a useful tool to overcome these barriers. The Hadamard gate is universally used to create and destroy superpositions, which are essential for quantum technological applications. In an eye-tracking study, we investigated the conditions under which task solvers benefit from the dimensional circle notation (DCN) visualization in terms of performance and cognitive load, when solving questions about the Hadamard gate in two- and three-qubit systems. We find that participants, when presented with visualization in addition to the mathematical Dirac notation, experience less intrinsic and extraneous cognitive load in general, and that they benefit in terms of performance under certain conditions. The findings have implications for teaching in QT and open new avenues for further research.
Keywords: Quantum Technologies; Task Solving; Qubit; Multiple Representations; Cognitive Load