Probabilities from envariance?

Details Probabilities from envariance? Probabilities from envariance?

2004-01-29

arxiv.org/abs/quant-ph/0401180v1

International Journal of Quantum Information 2(2), 221-230 (2004)

Physics

Quantum Physics

To appear in IJQI; 9 pages, LaTeX

Scientific paper

10.1142/S0219749904000195

Zurek claims to have derived Born's rule noncircularly in the context of an ontological no-collapse interpretation of quantum states, without any "deus ex machina imposition of the symptoms of classicality." After a brief review of Zurek's derivation it is argued that this claim is exaggerated if not wholly unjustified. In order to demonstrate that Born's rule arises noncircularly from deterministically evolving quantum states, it is not sufficient to assume that quantum states are somehow associated with probabilities and then prove that these probabilities are given by Born's rule. One has to show how irreducible probabilities can arise in the context of an ontological no-collapse interpretation of quantum states. It is argued that the reason why all attempts to do this have so far failed is that quantum states are fundamentally algorithms for computing correlations between possible measurement outcomes, rather than evolving ontological states.

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