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In defence of non-ontic accounts of quantum states

Friederich, Simon (2012) In defence of non-ontic accounts of quantum states. [Preprint]

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    The paper discusses objections against non-hidden variable versions of the epistemic conception of quantum states — the view that quantum states do not describe the properties of quantum systems but reflect, in some way to be specified, the epistemic conditions of agents assigning them. In the first half of the paper, the main motivation for the epistemic conception of quantum states is sketched, and a version of it is outlined, which combines ideas from an earlier study of it [Friederich 2011] with elements of Richard Healey’s recent pragmatist interpretation of quantum theory [Healey forthcoming a]. In the second half, various objections against epistemic accounts of quantum states are discussed in detail, which are based on criticisms found in the literature. Possible answers by the version outlined here are compared with answers from the quantum Bayesian point of view, which is at present the
    most discussed version of the epistemic conception of quantum states.

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    Item Type: Preprint
    Keywords: quantum states; quantum probabilities; anthropocentric notions; micro/macro divide; explanation and prediction
    Subjects: General Issues > Explanation
    Specific Sciences > Physics > Quantum Mechanics
    General Issues > Reductionism/Holism
    Depositing User: Dr. Simon Friederich
    Date Deposited: 01 May 2012 08:18
    Last Modified: 08 Feb 2013 09:33
    Item ID: 9104

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