QBism and the Greeks: why a quantum state does not represent an element of physical reality

In QBism (or quantum Bayesianism) a quantum state does not represent an element of physical reality but an agent's personal probability assignments, reflecting his subjective degrees of belief about the future content of his experience. In this paper, we contrast QBism with hidden-variable acco...

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Bibliographic Details
Published inPhysica scripta Vol. 90; no. 1; pp. 15104 - 6
Main Authors Fuchs, Christopher A, Schack, Rüdiger
Format Journal Article
LanguageEnglish
Published 01.01.2015
Subjects
Bayesian analysis
Correlation
Quantum mechanics
Schroedinger equation
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Summary:In QBism (or quantum Bayesianism) a quantum state does not represent an element of physical reality but an agent's personal probability assignments, reflecting his subjective degrees of belief about the future content of his experience. In this paper, we contrast QBism with hidden-variable accounts of quantum mechanics and show the sense in which QBism explains quantum correlations. QBism's agent-centered worldview can be seen as a development of ideas expressed in Schrodinger's essay 'Nature and the Greeks'.
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ISSN:0031-8949
1402-4896
DOI:10.1088/0031-8949/90/1/015104