Aspects of Probability in Quantum Theory

Michael Dickson

in Probabilities in Physics

Published in print September 2011 | ISBN: 9780199577439
Published online September 2011 | e-ISBN: 9780191730603 | DOI:
Aspects of Probability in Quantum Theory

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This chapter elucidates quantum probabilities in the formal apparatus of quantum mechanics, while not taking sides about interpretive issues. A central contention is that the notion of a probability measure should not be captured in the usual classical framework, but instead in the more general framework of effect algebras. Two formulations of quantum mechanics in this framework are provided: one using projection-valued measures, another using positive-operator-valued measures. The chapter presents several versions of the Born Rule and critically examines justifications that have been proposed for the Born Rule. The chapter concludes with laying down the perennial puzzles about probability in quantum mechanics such as quantum correlations.

Keywords: probabilities; quantum mechanics; effect algebra; Born Rule; projection-valued measure; quantum correlations

Chapter.  13681 words. 

Subjects: Philosophy of Science

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