Non-equilibrium steady-states of memoryless quantum collision models
- URL: http://arxiv.org/abs/2001.01723v3
- Date: Thu, 28 May 2020 10:33:55 GMT
- Title: Non-equilibrium steady-states of memoryless quantum collision models
- Authors: Giacomo Guarnieri, Daniele Morrone, Bar{\i}\c{s} \c{C}akmak, Francesco
Plastina, Steve Campbell
- Abstract summary: We show that only a coupling Hamiltonian in the energy-preserving form drives the system to thermal equilibrium.
We characterize the specific form of system-environment interaction that drives the system to a steady-state exhibiting coherence in the energy eigenbasis.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: 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.
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