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Altaie, MB, Hodgson, D and Beige, A orcid.org/0000-0001-7230-4220 (2022) Time and Quantum Clocks: A Review of Recent Developments. Frontiers in Physics, 10. 897305. ISSN 2296-424X
Abstract
In this review we present the problem of time in quantum physics, including a short history of the problem and the known objections about considering time as a quantum observable. The need to deal with time as an observable is elaborated through some unresolved problems. The lack of a consistent theory of time is currently hindering the formulation of a full-fledged theory of quantum gravity. It is argued that the proposal set forth by several authors of considering an intrinsic measurement of quantum time, besides having the conventional external time, is compelling. Recently several suggestions have been put forward to revive the proposal of Page and Wootters (1983), elaborating and resolving some of the main ambiguities of the original proposal and opening new scope for understanding its content. The approach followed in these new contributions exposes the need to go beyond the limitations enforced by the conventional approach of quantum physics. The attitude of covariant loop quantum gravity, in which it is called to completely ignore time, is also discussed. This review could be a step forward in an endeavour to reform our outlook of the unification of the theory of relativity and quantum physics by furnishing the conceptual ground needed for this goal. Intentionally, some technical details are avoided since we aim to present the approaches to resolve the problem in a simple way with the clearest possible outlook. These can be looked up in the original references provided.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 Altaie, Hodgson and Beige. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
Keywords: | quantum time, quantum gravity, Pauli objection, Wheeler - DeWitt equation, quantum field theory |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Theoretical Physics (Leeds) |
Funding Information: | Funder Grant number EPSRC (Engineering and Physical Sciences Research Council) EP/S029575/1 EPSRC (Engineering and Physical Sciences Research Council) REFEREE INCENTIVE SCHEME EPSRC (Engineering and Physical Sciences Research Council) EP/M013243/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 03 May 2022 14:10 |
Last Modified: | 22 Jan 2025 14:14 |
Status: | Published |
Publisher: | Frontiers Media |
Identification Number: | 10.3389/fphy.2022.897305 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:186276 |
Available Versions of this Item
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Time and Quantum Clocks: a review of recent developments. (deposited 22 Jan 2025 14:13)
- Time and Quantum Clocks: A Review of Recent Developments. (deposited 03 May 2022 14:10) [Currently Displayed]