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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/31885

Title: Heat flux and information backflow in cold environments
Authors: Schmidt, Rebecca
Maniscalco, S.
Ala-Nissila, Tapio
Issue Date: 2016
Publisher: © American Physical Society
Citation: SCHMIDT, R., MANISCALCO, S. and ALA-NISSILA, T., 2016. Heat flux and information backflow in cold environments. Physical Review A, 94(1): 010101.
Abstract: © 2016 American Physical Society. We examine non-Markovian effects in an open quantum system from the point of view of information flow. To this end, we consider the spin-boson model with a cold reservoir, accounting for the exact time-dependent correlations between the system and the bath to study the exchange of information and heat. We use an information-theoretic measure of the relevant memory effects and demonstrate that the information backflow from the reservoir to the system does not necessarily correlate with the backflow of heat. We also examine the influence of temperature and coupling strength on the loss and gain of information between the system and the bath. Finally, we discuss how additional driving changes the backflow of information, giving rise to potential applications in reservoir engineering.
Description: This paper was accepted for publication in the journal Physical Review A and the definitive published version is https://doi.org/10.1103/PhysRevA.94.010101
Sponsor: This work was supported by the COST Action MP1209, the Center of Quantum Engineering at Aalto University School of Science, the EU Collaborative project QuProCS (Grant Agreement No. 641277), the Academy of Finland through its Centres of Excellence Programme (2015–2017) under projects No. 284621 and No. 287750, and the Magnus Ehrnrooth Foundation.
Version: Accepted for publication
DOI: 10.1103/PhysRevA.94.010101
URI: https://dspace.lboro.ac.uk/2134/31885
Publisher Link: https://doi.org/10.1103/PhysRevA.94.010101
ISSN: 2469-9926
Appears in Collections:Published Articles (Maths)

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