Decoherence and Probability
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arXiv
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866909861802934272 |
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| author | Dawid, Richard Thébault, Karim P. Y. |
| author_facet | Dawid, Richard Thébault, Karim P. Y. |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_01317 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Decoherence and Probability Dawid, Richard Thébault, Karim P. Y. Quantum Physics History and Philosophy of Physics 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. |
| title | Decoherence and Probability |
| topic | Quantum Physics History and Philosophy of Physics |
| url | https://arxiv.org/abs/2410.01317 |