Quantum retrodiction: foundations and controversies

Barnett, S. M. , Jeffers, J. and Pegg, D. T. (2021) Quantum retrodiction: foundations and controversies. Symmetry, 13(4), 586. (doi: 10.3390/sym13040586)

[img] Text
238088.pdf - Published Version
Available under License Creative Commons Attribution.



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
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
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

University Staff: Request a correction | Enlighten Editors: Update this record

Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
173378Astronomy and physics, theoretical physics and application physics / Quantum Theory. Royal Society Research Professorship.Stephen BarnettThe Royal Society (ROYSOC)RP150122P&S - Physics & Astronomy