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Quantum decoherence in a pragmatist view: Part I

Healey, Richard (2012) Quantum decoherence in a pragmatist view: Part I. [Preprint]


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The quantum theory of decoherence plays an important role in
a pragmatist interpretation of quantum theory. It governs the descriptive content of claims about values of physical magnitudes and offers advice on when to use quantum probabilities as a guide to their truth. The content of
a claim is to be understood in terms of its role in inferences. This promises a better treatment of meaning than that of Bohr. Quantum theory models physical systems with no mention of measurement: it is decoherence,
not measurement, that licenses application of Born's probability rule. So quantum theory also offers advice on its own application. I show how this works in a simple model of decoherence, and then in applications to both
laboratory experiments and natural systems. Applications to quantum field theory and the measurement problem will be discussed elsewhere.

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Item Type: Preprint
Healey, Richard
Keywords: Quantum decoherence, pragmatist, quantum interpretation
Subjects: Specific Sciences > Physics > Quantum Mechanics
Depositing User: Richard Andrew Healey
Date Deposited: 28 Jul 2012 16:18
Last Modified: 28 Jul 2012 16:18
Item ID: 9259

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