Foundations of Physics 49 (6):663-676 (2019)

Authors
Gregg Jaeger
Boston University
Abstract
Paul Busch argued that the positive operator measure, a generalization of the standard quantum observable, enables a consistent notion of unsharp reality based on a quantifiable degree of reality whereby systems can possess generalized properties jointly, whereas related sharp properties cannot be so possessed. Here, the work leading up to the formalization of this notion to which he made great contributions is reviewed and explicated in relation to Heisenberg’s notions of potentiality and actuality. The notion of unsharp reality is then extended further by the introduction of a distinction between actual and actualizable elements of reality based on these mathematical innovations.
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DOI 10.1007/s10701-019-00273-z
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References found in this work BETA

Interpreting the Quantum World.Jeffrey Bub - 1998 - British Journal for the Philosophy of Science 49 (4):637-641.
Whence the Eigenstate–Eigenvalue Link?Marian J. R. Gilton - 2016 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 55:92-100.
Search for a Naturalistic World View.Abner Shimony - 1997 - Synthese 110 (2):335-342.
Unsharp Quantum Reality.Paul Busch & Gregg Jaeger - 2010 - Foundations of Physics 40 (9-10):1341-1367.

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