Dawid, Richard and Thebault, Karim P Y (2025) Decoherence and Probability. [Preprint]
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Abstract
One cannot justifiably presuppose the physical salience of structures derived via decoherence theory based upon an entirely uninterpreted use of the quantum formalism. Non-probabilistic accounts of the emergence of probability via decoherence are unconvincing. An alternative account of the emergence of probability involves the combination of a partially interpreted decoherence model and an averaging of observables with respect to a positive-definite quasi-probability function and neglect of terms $O(\hbar)$. Our analysis delimits the context in which the combination of decoherence and a semi-classical averaging allows us to recover a classical probability model within an emergent coarse-grained description.
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| Item Type: | Preprint | |||||||||
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| Keywords: | decoherence; probability; quasi-probability; semi-classical emergence | |||||||||
| Subjects: | Specific Sciences > Probability/Statistics Specific Sciences > Physics > Quantum Mechanics General Issues > Reductionism/Holism |
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| Depositing User: | Dr Karim Thebault | |||||||||
| Date Deposited: | 22 Oct 2025 11:08 | |||||||||
| Last Modified: | 22 Oct 2025 11:08 | |||||||||
| Item ID: | 26996 | |||||||||
| DOI or Unique Handle: | https://doi.org/10.1017/psa.2025.10110 | |||||||||
| Subjects: | Specific Sciences > Probability/Statistics Specific Sciences > Physics > Quantum Mechanics General Issues > Reductionism/Holism |
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| Date: | 21 October 2025 | |||||||||
| URI: | https://philsci-archive.pitt.edu/id/eprint/26996 |
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Decoherence and Probability. (deposited 02 Oct 2024 11:59)
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Decoherence and Probability. (deposited 27 Jan 2025 14:16)
- Decoherence and Probability. (deposited 22 Oct 2025 11:08) [Currently Displayed]
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Decoherence and Probability. (deposited 27 Jan 2025 14:16)
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