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Unruh effect and information flow

Sokolov, Boris; Louko, Jorma; Maniscalco, Sabrina; Vilja, Iiro

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Authors

Boris Sokolov

JORMA LOUKO JORMA.LOUKO@NOTTINGHAM.AC.UK
Professor of Mathematical Physics

Sabrina Maniscalco

Iiro Vilja



Abstract

We study memory effects as information backflow for an accelerating two-level detector weakly interacting with a scalar field in the Minkowski vacuum. This is the framework of the well-known Unruh effect: the detector behaves as if it were in a thermal bath with a temperature proportional to its acceleration. Here we show that if we relax the usual assumption of an eternally uniformly accelerating system, and we instead consider the more realistic case in which a finite-size detector starts accelerating at a certain time, information backflow may appear in the dynamics. Our results demonstrate the existence of a connection between the trajectory of the detector in Minkowski space and the behavior of information flow. This allows us to inspect the Unruh effect under a new light, making use of the latest developments in quantum information theory and open quantum systems.

Citation

Sokolov, B., Louko, J., Maniscalco, S., & Vilja, I. (2020). Unruh effect and information flow. Physical Review D, 101(2), Article 024047. https://doi.org/10.1103/PhysRevD.101.024047

Journal Article Type Article
Acceptance Date Jan 10, 2020
Online Publication Date Jan 28, 2020
Publication Date Jan 28, 2020
Deposit Date Feb 3, 2020
Publicly Available Date Mar 29, 2024
Journal Physical Review D
Print ISSN 2470-0010
Electronic ISSN 2470-0029
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 101
Issue 2
Article Number 024047
DOI https://doi.org/10.1103/PhysRevD.101.024047
Public URL https://nottingham-repository.worktribe.com/output/3862397
Publisher URL https://journals.aps.org/prd/abstract/10.1103/PhysRevD.101.024047

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