Liu, Nana, Goold, John, Fuentes, Ivette et al. (3 more authors) (2016) Quantum thermodynamics for a model of an expanding Universe. Classical and Quantum Gravity. 035003. ISSN 1361-6382
Abstract
We investigate the thermodynamical properties of quantum fields in curved spacetime. Our approach is to consider quantum fields in curved spacetime as a quantum system undergoing an out-of-equilibrium transformation. The non-equilibrium features are studied by using a formalism which has been developed to derive fluctuation relations and emergent irreversible features beyond the linear response regime. We apply these ideas to an expanding Universe scenario, therefore avoiding assumptions on the relation between entropy and quantum matter. We provide a fluctuation theorem which allows us to understand particle production due to the expansion of the Universe as an entropic increase. Our results pave the way towards a different understanding of the thermodynamics of relativistic and quantum systems in our Universe.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 IOP Publishing Ltd. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 14 Apr 2016 11:58 |
Last Modified: | 21 Jan 2025 17:20 |
Published Version: | https://doi.org/10.1088/0264-9381/33/3/035003 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1088/0264-9381/33/3/035003 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:98537 |