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

Publication Year:
2006
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Repository URL:
http://philsci-archive.pitt.edu/id/eprint/2811
Author(s):
Allori, Valia; Goldstein, Sheldon; Tumulka, Roderich; Zanghi, Nino
preprint description
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 Schrodinger'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.