期刊
PHYSICS LETTERS A
卷 384, 期 24, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.physleta.2020.126576
关键词
Open quantum systems; Quantum thermodynamics; Collision models; Nonequilibrium systems
资金
- European Research Council Starting Grant ODYSSEY [758403]
- BAGEP Award of the Science Academy
- Research Fund of Bahcesehir University (BAUBAP) [BAP.2019.02.03]
- Science Foundation Ireland Starting Investigator Research Grant SpeedDemon [18/SIRG/5508]
- Erasmus Programme
We investigate the steady state properties arising from the open system dynamics described by a memoryless (Markovian) quantum collision model, corresponding to a master equation in the ultra-strong coupling regime. By carefully assessing the work cost of switching on and off the system-environment interaction, we show that only a coupling Hamiltonian in the energy-preserving form drives the system to thermal equilibrium, while any other interaction leads to non-equilibrium steady states that are supported by steady-state currents. These currents provide a neat exemplification of the housekeeping work and heat. Furthermore, we characterize the specific form of system-environment interaction that drives the system to a steady-state exhibiting coherence in the energy eigenbasis, thus, giving rise to families of states that are non-passive. (C) 2020 The Authors. Published by Elsevier B.V.
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