A history of entanglement: Decoherence and the interpretation problem |
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Affiliation: | 1. Institute for History and Foundations of Science, Utrecht University, Budapestlaan 6, 3584 CD, Utrecht, The Netherlands;2. Institute for History and Foundations of Science, Utrecht University, Budapestlaan 6, 3584 CD, Utrecht, The Netherlands;3. Institute for History and Foundations of Science, Utrecht University, Budapestlaan 6, 3584 CD, Utrecht, The Netherlands;4. Institute for Theoretical Physics, University of Amsterdam, Valckenierstraat 65, 1018 XE, Amsterdam, The Netherlands |
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Abstract: | This paper examines the interweaving of the history of quantum decoherence and the interpretation problem in quantum mechanics through the work of two physicists—H. Dieter Zeh and Wojciech Zurek. In the early 1970s Zeh anticipated many of the important concepts of decoherence, framing it within an Everett-type interpretation. Zeh has since remained committed to this view; however, Zurek, whose papers in the 1980s were crucial in the treatment of the preferred basis problem and the subsequent development of density matrix formalism, has argued that decoherence leads to what he terms the ‘existential interpretation’, compatible with certain aspects of both Everett's relative-state formulation and the Bohr's ‘Copenhagen interpretation’. I argue that these different interpretations can be traced back to the different early approaches to the study of environment-induced decoherence in quantum systems, evident in the early work of Zeh and Zurek. I also show how Zurek's work has contributed to the tendency to see decoherence as contributing to a ‘new orthodoxy’ or a reconstruction of the original Copenhagen interpretation. |
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