JORMA LOUKO JORMA.LOUKO@NOTTINGHAM.AC.UK
Professor of Mathematical Physics
Thermality from a Rindler quench
Louko, Jorma
Authors
Abstract
© 2018 IOP Publishing Ltd. Ultracold fermionic atoms in an optical lattice, with a sudden position-dependent change (a quench) in the effective dispersion relation, have been proposed by Rodríguez-Laguna et al as an analogue spacetime test of the Unruh effect. We provide new support for this analogue by analysing a massless scalar field on a (1+1)-dimensional continuum spacetime with a similar quench: an early time Minkowski region is joined at a constant time surface, representing the quench, to a late time static region in which left and right asymptotically Rindler domains are connected by a smooth negative curvature bridge. We show that the quench is energetically mild, and late time static observers, modelled as a derivative-coupling Unruh-DeWitt detector, see thermality, in a temperature that equals the Unruh temperature for observers in the asymptotic Rindler domains. The Unruh effect hence prevails, despite the energy injected into the field by the quench and despite the absence of a late time Killing horizon. These results strengthen the motivation to realise the experimental proposal.
Citation
Louko, J. (2018). Thermality from a Rindler quench. Classical and Quantum Gravity, 35(20), 1-13. https://doi.org/10.1088/1361-6382/aadb34
Journal Article Type | Article |
---|---|
Acceptance Date | Aug 17, 2018 |
Online Publication Date | Sep 27, 2018 |
Publication Date | Sep 27, 2018 |
Deposit Date | Oct 8, 2018 |
Publicly Available Date | Sep 28, 2019 |
Journal | Classical and Quantum Gravity |
Print ISSN | 0264-9381 |
Electronic ISSN | 1361-6382 |
Publisher | IOP Publishing |
Peer Reviewed | Peer Reviewed |
Volume | 35 |
Issue | 20 |
Article Number | 205006 |
Pages | 1-13 |
DOI | https://doi.org/10.1088/1361-6382/aadb34 |
Keywords | Unruh effect; Analogue spacetime; Unruh–DeWitt detector |
Public URL | https://nottingham-repository.worktribe.com/output/1150033 |
Publisher URL | http://iopscience.iop.org/article/10.1088/1361-6382/aadb34 |
Additional Information | © 2018 IOP Publishing Ltd |
Contract Date | Oct 8, 2018 |
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