Fast Route to Thermalization
Abstract
We present a control scheme for quantum systems coupled to a thermal bath. We demonstrate state-to-state control between two Gibbs states. This scheme can be used to accelerate thermalization and cool the open system. Starting from a microscopic description, we derive the reduced system dynamics, leading to a non-adiabatic master equation. The equation contains non-trivial effects due to the non-adiabatic driving and bath interaction. These special features enable controlling the open system and accelerating the entropy changes. For a two-level system model, we obtain a general solution and introduce a reverse-engineering scheme for control. The control problem is analyzed in the context of the theory of quantum control and the accompanying thermodynamic cost.
Cite
@article{arxiv.1911.09591,
title = {Fast Route to Thermalization},
author = {Roie Dann and Ander Tobalina and Ronnie Kosloff},
journal= {arXiv preprint arXiv:1911.09591},
year = {2021}
}