Mb. Weissman, Emergent measure-dependent probabilities from modified quantum dynamics without state-vector reduction, FOUND PH L, 12(5), 1999, pp. 407-426
Counting outcomes is the obvious algorithm for generating probabilities in
quantum mechanics without state-vector reduction (i.e., many-worlds). This
procedure has usually been rejected because for purely linear dynamics it g
ives results in disagreement with experiment. Here it is shown that if non-
linear decoherence effects (previously proposed by other authors) are combi
ned with an exponential time dependence of the scale for the non-linear eff
ects the correct measure-dependent probabilities can emerge via outcome cou
nting, without the addition of any stochastic fields or metaphysical hypoth
eses.