Skip to main content

Research Repository

Advanced Search

Ideal clocks - A convenient fiction

Lorek, Krzysztof; Louko, Jorma; Dragan, Andrzej


Krzysztof Lorek

Professor of Mathematical Physics

Andrzej Dragan


© 2015 IOP Publishing Ltd. We show that no device built according to the rules of quantum field theory can measure proper time along its path. Highly accelerated quantum clocks experience the Unruh effect, which inevitably influences their time rate. This contradicts the concept of an ideal clock, whose rate should only depend on the instantaneous velocity.


Lorek, K., Louko, J., & Dragan, A. (2015). Ideal clocks - A convenient fiction. Classical and Quantum Gravity, 32(17), Article 175003.

Journal Article Type Article
Acceptance Date Jul 3, 2015
Online Publication Date Aug 4, 2015
Publication Date Sep 10, 2015
Deposit Date Oct 18, 2018
Publicly Available Date Oct 18, 2018
Journal Classical and Quantum Gravity
Print ISSN 0264-9381
Electronic ISSN 1361-6382
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 32
Issue 17
Article Number 175003
Public URL
Additional Information Journal title: Classical and Quantum Gravity; Article type: paper; Article title: Ideal clocks—a convenient fiction; Copyright information: © 2015 IOP Publishing Ltd; Date received: 2015-03-24; Date accepted: 2015-07-03; Online publication date: 2015-08-04


You might also like

Downloadable Citations