Quantum States for Primitive Ontologists

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“Quantum States for Primitive Ontologists: A Case Study.” European Journal for Philosophy of Science 2 (2012) 67–83.

(published version) [preprint]

Abstract. Under so-called primitive ontology approaches, in describing the history of a quantum system, on attributes interesting properties to regions of spacetime. Primitive ontology approaches, which include some variants of Bohmian mechanics and spontaneous collapse theories, are interesting in part because they hold out some hope that it should not be too difficult to make a connection between models of quantum mechanics and descriptions of histories of ordinary macroscopic bodies. But such approaches are dualistic, positing a quantum state as well as ordinary material degrees of freedom. This paper lays out and compares some options that primitive ontologists have for making sense of the quantum state.

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