, Volume 24, Issue 1, pp 137–156

On the Ollivier–Poulin–Zurek Definition of Objectivity

Original Paper

DOI: 10.1007/s10516-013-9218-3

Cite this article as:
Fields, C. Axiomathes (2014) 24: 137. doi:10.1007/s10516-013-9218-3


The Ollivier–Poulin–Zurek definition of objectivity provides a philosophical basis for the environment as witness formulation of decoherence theory and hence for quantum Darwinism. It is shown that no account of the reference of the key terms in this definition can be given that does not render the definition inapplicable within quantum theory. It is argued that this is not the fault of the language used, but of the assumption that the laws of physics are independent of Hilbert-space decomposition. All evidence suggests that this latter assumption is true. If it is, decoherence cannot explain the emergence of classicality.


Decoherence Quantum Darwinism Classical information Environment as witness Decomposition into systems Semantics 

Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  1. 1.Santa FeUSA

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