Barnett, S. M. , Jeffers, J. and Pegg, D. T. (2021) Quantum retrodiction: foundations and controversies. Symmetry, 13(4), 586. (doi: 10.3390/sym13040586)
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Abstract
Prediction is the making of statements, usually probabilistic, about future events based on current information. Retrodiction is the making of statements about past events based on current information. We present the foundations of quantum retrodiction and highlight its intimate connection with the Bayesian interpretation of probability. The close link with Bayesian methods enables us to explore controversies and misunderstandings about retrodiction that have appeared in the literature. To be clear, quantum retrodiction is universally applicable and draws its validity directly from conventional predictive quantum theory coupled with Bayes’ theorem.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Barnett, Professor Stephen |
| Authors: | Barnett, S. M., Jeffers, J., and Pegg, D. T. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Symmetry |
| Publisher: | MDPI |
| ISSN: | 2073-8994 |
| ISSN (Online): | 2073-8994 |
| Published Online: | 02 April 2021 |
| Copyright Holders: | Copyright © 2021 by the authors |
| First Published: | First published in Symmetry 13(4):586 |
| Publisher Policy: | Reproduced under a Creative Commons license |
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