International Journal of Theoretical Physics

, Volume 49, Issue 10, pp 2523–2527 | Cite as

Quantum Darwinism Requires an Extra-Theoretical Assumption of Encoding Redundancy

  • Chris FieldsEmail author


Observers restricted to the observation of pointer states of apparatus cannot conclusively demonstrate that the pointer of an apparatus \(\mathcal{A}\) registers the state of a system of interest S without perturbing S. Observers cannot, therefore, conclusively demonstrate that the states of a system S are redundantly encoded by pointer states of multiple independent apparatus without destroying the redundancy of encoding. The redundancy of encoding required by quantum Darwinism must, therefore, be assumed from outside the quantum-mechanical formalism and without the possibility of experimental demonstration.


Quantum Darwinism Environment as witness Redundant encoding 


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© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Caunes MinervoisFrance

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