A possible explanation for the probabilities of quantum mechanics

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Abstract

It is shown that a lack of knowledge about the measurements of a physical system gives rise to a nonclassical probability calculus for this physical system. It is also shown that the nonclassical probability calculus of quantum mechanics can be interpreted as being the result of a lack of knowledge about the measurements. Examples are given of macroscopic real systems that have a nonclassical probability calculus. A macroscopic real system that has a quantum probability calculus is also given, and more specifically a model for the spin of a spin-1/2 particle is contructed. These results are analysed in the light of the old hidden variable problem.
Original languageEnglish
Pages (from-to)202-210
JournalJournal of Mathematical Physics
Volume27
DOIs
Publication statusPublished - 1986

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