Stannett, M.P. orcid.org/0000-0002-2794-8614, Andréka, H., Madarász, J.X. et al. (2 more authors) (2014) Faster than light motion does not imply time travel. Classical and Quantum Gravity, 31 (9). 095005. ISSN 0264-9381
Abstract
Seeing the many examples in the literature of causality violations based on faster-than-light (FTL) signals one naturally thinks that FTL motion leads inevitably to the possibility of time travel. We show that this logical inference is invalid by demonstrating a model, based on (3+1)-dimensional Minkowski spacetime, in which FTL motion is permitted (in every direction without any limitation on speed) yet which does not admit time travel. Moreover, the Principle of Relativity is true in this model in the sense that all observers are equivalent. In short, FTL motion does not imply time travel after all.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2014 IOP Publishing. This is an author produced version of a paper subsequently published in Classical and Quantum Gravity. Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Computer Science (Sheffield) |
Funding Information: | Funder Grant number ROYAL SOCIETY IE110369 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 19 Sep 2016 10:55 |
Last Modified: | 29 Mar 2018 12:09 |
Published Version: | http://dx.doi.org/10.1088/0264-9381/31/9/095005 |
Status: | Published |
Publisher: | IOP Publishing |
Refereed: | Yes |
Identification Number: | 10.1088/0264-9381/31/9/095005 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:79943 |