PIRSA:06050024
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Nonlocal boxes and C*algebras Speaker(s): Hans Halvorson
Abstract: Clifton, Bub, and Halvorson claim to be able to derive quantum mechanics from informationtheoretic axioms. However, their derivation relies on the auxiliary assumption that the relevant probabilities for measurement outcomes can be represented by the observables (selfadjoint operators) and states of a C*algebra. There are legitimate probability theories that are not so representable  in particular, the nonlocal boxes of Popescu and Rohrlich. We explain the impact of nonlocal boxes on the interpretation of the CBH derivation, and we discuss possible generalizations of the CBH derivation in the framework of these more general probability theories.
Date: 29/05/2006  2:30 pm
