Implications of non-Markovian quantum dynamics for the Landauer bound

Marco Pezzutto, Mauro Paternostro, Yasser Omar

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Abstract

We study the dynamics of a spin-1/2 particle interacting with a multi-spin environment, modelling the corresponding open system dynamics through a collision-based model. The environmental particles are prepared in individual thermal states, and we investigate the effects of a distribution of temperatures across the spin environment on the evolution of the system, particularly how thermalisation in the long-time limit is affected. We study the phenomenology of the heat exchange between system and environment and consider the information-to-energy conversion process, induced by the system-environment interaction and embodied by the Landauer principle. Furthermore, by considering an interacting-particles environment, we tune the dynamics of the system from an explicit Markovian evolution up to a strongly non-Markovian one, investigating the connections between non-Markovianity, the establishment of system-environment correlations, and the breakdown of the validity of Landauer principle.
Original languageEnglish
Number of pages10
JournalNew Journal of Physics
Volume18
Early online date15 Dec 2016
DOIs
Publication statusEarly online date - 15 Dec 2016

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