Berghofer, Philipp (2024) Quantum Probabilities Are Objective Degrees of Epistemic Justification. [Preprint]
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Abstract
QBism is currently one of the most widely discussed “subjective” interpretations of quantum mechanics. Its key move is to say that quantum probabilities are personalist Bayesian probabilities and that the quantum state represents subjective degrees of belief. Even probability-one predictions are considered subjective assignments expressing the agent’s highest possible degree of certainty about what they will experience next. For most philosophers and physicists this means that QBism is simply too subjective. Even those who agree with QBism that the wave function should not be reified and that we should look for alternatives to standard ψ-ontic interpretations often argue that QBism must be abandoned because it detaches science from objectivity. The problem is that from the QBist perspective it is hard to see how objectivity could enter science. In this paper, I introduce and motivate an interpretation of quantum mechanics that takes QBism as a starting point, is consistent with all its virtues, but allows objectivity to enter from the get-go. This is the view that quantum probabilities should be understood as objective degrees of epistemic justification.
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| Item Type: | Preprint | ||||||
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| Keywords: | quantum probabilities; wave function; QBism; interpretations of quantum mechanics; quantum reconstructions; epistemic justification; epistemology | ||||||
| Subjects: | Specific Sciences > Physics > Quantum Mechanics General Issues > Realism/Anti-realism |
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| Depositing User: | Dr. Philipp Berghofer | ||||||
| Date Deposited: | 09 Nov 2024 13:22 | ||||||
| Last Modified: | 09 Nov 2024 13:22 | ||||||
| Item ID: | 24190 | ||||||
| Subjects: | Specific Sciences > Physics > Quantum Mechanics General Issues > Realism/Anti-realism |
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| Date: | 2024 | ||||||
| URI: | https://philsci-archive.pitt.edu/id/eprint/24190 |
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