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arXiv · 2301.06299

Fehlvorstellungen zur Superposition in der Quantenphysik

Andreas J. C. Woitzik·Oliver Passon
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Abstract

Quantum physics is a long established content in high school curricula. More recently, alternative approaches based on information-theoretical formulations of quantum theory have been discussed, in which conceptual emphases change in comparison to established didactical approaches. In particular, the notions of "superposition" and "entanglement" are brought into the center of discussion in these approaches. Likewise, there is a broad public interest in the new applications of quantum physics such as quantum computing, which has led to a variety of popular depictions. In this paper we identify common inaccuracies and errors in these representations, explain the technical background and make first recommendations to avoid misunderstandings. Our initial focus is on the notion of "superposition". -- Die Quantenphysik ist seit vielen Jahren ein etablierter Inhalt der Oberstufenphysik. In j\"ungerer Zeit werden alternative Zug\"ange \"uber die informationstheoretische Formulierung der Quantentheorie diskutiert, bei denen sich konzeptionelle und begriffliche Schwerpunkte im Vergleich zu etablierten Elementarisierungen ver\"andern. Im Besonderen die Begriffe "Superposition" und "Verschr\"ankung" werden bei diesen Zug\"angen in das Zentrum der Diskussion ger\"uckt. Ebenfalls besteht ein breites \"offentliches Interesse an den neuen Anwendungen der Quantenphysik wie dem Quanten-computer, das zu einer Vielzahl popul\"arer Darstellungen gef\"uhrt hat. In dieser Arbeit identifizieren wir verbreitete Ungenauigkeiten und Fehler in diesen Darstellungen, erl\"autern den fachlichen Hintergrund und machen erste Empfehlungen, um Missverst\"andnisse zu vermeiden. Unser Schwerpunkt liegt dabei zun\"achst auf dem Begriff der "Superposition".

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Andreas J. C. Woitzik, Oliver Passon. 2023-01-16. Fehlvorstellungen zur Superposition in der Quantenphysik. https://arxiv.org/abs/2301.06299

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