On the Common Structure of Bohmian Mechanics and the Ghirardi-Rimini-Weber Theory

Abstract
Bohmian mechanics and the Ghirardi-Rimini-Weber theory provide opposite resolutions of the quantum measurement problem: the former postulates additional variables (the particle positions) besides the wave function, whereas the latter implements spontaneous collapses of the wave function by a nonlinear and stochastic modification of Schrödinger's equation. Still, both theories, when understood appropriately, share the following structure: They are ultimately not about wave functions but about 'matter' moving in space, represented by either particle trajectories, fields on space-time, or a discrete set of space-time points. The role of the wave function then is to govern the motion of the matter.
Keywords Bohmian Mechanics  GRW theory  Primitive ontology
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DOI 10.1093/bjps/axn012
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Building the World From its Fundamental Constituents.L. A. Paul - 2012 - Philosophical Studies 158 (2):221-256.
Quantum States for Primitive Ontologists: A Case Study.Gordon Belot - 2012 - European Journal for Philosophy of Science 2 (1):67-83.
GRW as an Ontology of Dispositions.Mauro Dorato & Michael Esfeld - 2010 - Studies in History and Philosophy of Science Part B 41 (1):41-49.
Ontic Structural Realism and the Interpretation of Quantum Mechanics.Michael Esfeld - 2013 - European Journal for Philosophy of Science 3 (1):19-32.

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