Authors
Carl Hoefer
Universitat Autonoma de Barcelona
Roman Frigg
London School of Economics
Abstract
GRW Theory postulates a stochastic mechanism assuring that every so often the wave function of a quantum system is `hit', which leaves it in a localised state. How are we to interpret the probabilities built into this mechanism? GRW theory is a firmly realist proposal and it is therefore clear that these probabilities are objective probabilities (i.e. chances). A discussion of the major theories of chance leads us to the conclusion that GRW probabilities can be understood only as either single case propensities or Humean objective chances. Although single case propensities have some intuitive appeal in the context of GRW theory, on balance it seems that Humean objective chances are preferable on conceptual grounds because single case propensities suffer from various well know problems such as unlimited frequency tolerance and lack of a rationalisation of the principal principle.
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DOI 10.1016/j.shpsb.2006.12.002
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References found in this work BETA

Humean Supervenience Debugged.David K. Lewis - 1994 - Mind 103 (412):473--490.
A Subjectivist’s Guide to Objective Chance.David K. Lewis - 1980 - In Richard C. Jeffrey (ed.), Studies in Inductive Logic and Probability, Volume II. Berkeley: University of California Press. pp. 263-293.
What is a Law of Nature?David M. Armstrong - 1983 - Cambridge University Press.

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Citations of this work BETA

The Modal Nature of Structures in Ontic Structural Realism.Michael Esfeld - 2009 - International Studies in the Philosophy of Science 23 (2):179 – 194.
Quantum Propensities.Mauricio Suárez - 2006 - Studies in History and Philosophy of Modern Physics 38 (2):418-438.
GRW as an Ontology of Dispositions.Mauro Dorato & Michael Esfeld - 2010 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 41 (1):41-49.

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