Physics – Quantum Physics
Scientific paper
2006-03-03
Brit.J.Phil.Sci.59:353-389,2008
Physics
Quantum Physics
35 pages LaTeX, 1 figure; v4 minor additions, v2 major revision
Scientific paper
10.1093/bjps/axn012
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 Schr\"odinger'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.
Allori Valia
Goldstein Sheldon
Tumulka Roderich
Zanghi Nino
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