Measurement Outcomes and Probability in Everettian Quantum Mechanics

Baker, David (2006) Measurement Outcomes and Probability in Everettian Quantum Mechanics.

Full text available as:
PDF - Requires a viewer, such as Adobe Acrobat Reader or other PDF viewer.

Abstract

The decision-theoretic account of probability in the Everett or many-worlds interpretation, advanced by David Deutsch and David Wallace, is shown to be circular. Talk of probability in Everett presumes the existence of a preferred basis to identify measurement outcomes for the probabilities to range over. But the existence of a preferred basis can only be established by the process of decoherence, which is itself probabilistic.

Commentary on:Wallace, David (2002) Quantum Probability and Decision Theory, Revisited.
EPrint Type:Preprint
Keywords:Everett interpretation
Many worlds
Decoherence
Probability
Subjects:Specific Sciences: Probability/Statistics
General Issues: Decision Theory
Specific Sciences: Physics: Quantum Mechanics
ID Code:2717
Deposited By:Baker, David
Deposited On:21 May 2006
Additional Information:Forthcoming in Studies in History and Philosophy of Modern Physics.

Commentary/Response Threads