Many Worlds? : Everett, Quantum Theory, and Reality

Saunders, Simon (EDT); Barrett, Jonathan (EDT); Kent, Adrian (EDT); Wallace, David (EDT)

ISBN 10: 0199655502 / ISBN 13: 9780199655502

Edité par Oxford University Press, 2012

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Détails bibliographiques

• Titre: Many Worlds? : Everett, Quantum Theory, and Reality
• Éditeur: Oxford University Press
• Date de parution: 2012
• Langue: anglais
• ISBN à 10 chiffres: 0199655502
• ISBN à 13 chiffres: 9780199655502
• Reliure: Couverture souple
• État de l'article: As New

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Synopsis

What does realism about the quantum state imply? What follows when quantum theory is applied without restriction, if need be, to the whole universe? These are the questions which an illustrious team of philosophers and physicists debate in this volume. All the contributors are agreed on realism, and on the need, or the aspiration, for a theory that unites micro- and macroworlds, at least in principle. But the further claim argued by some is that if you allow the Schrodinger equation unrestricted application, supposing the quantum state to be something physically real, then this universe is one of countlessly many others, constantly branching in time, all of which are real. The result is the many worlds theory, also known as the Everett interpretation of quantum mechanics.
The contrary claim sees this picture of many worlds as in no sense inherent in quantum mechanics, even when the latter is allowed unrestricted scope and even given that the quantum state itself is something physically real. For this picture of branching worlds fails to make physical sense, let alone common sense, even on its own terms. The status of these worlds, what they are made of, is never adequately explained. Ordinary ideas about time and identity over time become hopelessly compromised. The concept of probability itself is brought into question.

À propos de l?auteur

Simon Saunders is Professor of Philosophy at the University of Oxford.


Jon Barrett is a Research Fellow in the Physics department at the University of Bristol


Adrian Kent is a Reader in Quantum Physics at the University of Cambridge



David Wallace is a lecturer in Philosophy of Physics at the University of Oxford