SMuK 2023 – scientific programme

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AGPhil: Arbeitsgruppe Philosophie der Physik

AGPhil 10: Quantum Foundations Poster Session

AGPhil 10.2: Poster

Thursday, March 23, 2023, 16:15–16:45, JAN/0027

Measuring up to the measurement problem: Decoherence and Bohr's ideas through the lens of the measurement problem and quantum erasers — •Emilia Kjaersdam Telléus — University of Copenhagen

In this thesis, interpretations of the formalism of quantum mechanics are investigated in terms of their address to the classic measurement problem as well as the more modern quantum erasers. The main focus is on the interpretational insight provided by Niels Bohr and the concept of decoherence, but with an overview of other important interpretations as well. The measurement problem is described and strategies for its solution is divided into two main categories: solutions and dissolutions, which are associated with collapse and no-collapse interpretations respectively. Decoherence is found to require an interpretational basis in order to properly address the measurement problem, while Bohr's interpretation has some unresolved points, mainly relating to the understanding of Bohr's notion of context, which is central to his idea of quantum mechanics. By comparing Bohr's ideas and decoherence, I argue that each can be of use to the other; decoherence can formalise some of Bohr's concepts, while Bohr's ideas provides a constructive interpretational basis for decoherence. Lastly, I argue that quantum erasers provides a ground for discussions on interpretational questions, as the insight into the nature of quantum mechanics challenges several aspects of the aforementioned different interpretations, the understanding of the Bohrian context among them.