Lagrangian possibilities

Guay, Alexandre;Ruyant, Quentin
(2024) Synthese, An International Journal for Epistemology, Methodology and Philosophy of Science — (2024)

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Natural modalities are often analysed from an abstract point of view where they are associated with putative laws of nature. However, the way possibilities are represented in physics is more complex. Lagrangian mechanics, for instance, involves two different layers of modalities: kinematical and dynamical possibilities. This paper examines the status of these two layers, both in the classical and quantum case. The quantum case is particularly problematic: we identify four possible interpretive options. The upshot is that a close inspection of the way possibilities are represented in physics could lead to new ways of thinking about natural modalities.
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Guay, A., & Ruyant, Q. (2024). Lagrangian possibilities. Synthese, An International Journal for Epistemology, Methodology and Philosophy of Science. Published. https://doi.org/10.1007/s11229-024-04550-x (Original work published 2024)