Relaxation Control of Open Quantum Systems
Quantum Physics
2026-03-02 v2 Quantum Gases
Statistical Mechanics
Abstract
A fundamental problem in experiments with open quantum systems is to ensure steady-state convergence within a given operational time window. Here, we devise a general state preparation recipe to control relaxation timescales and achieve steady-state convergence within experimental run times. We do so by constructing a unitary operation that cancels the desired relaxation modes. We provide an example in a few-body interacting system (long-range qubit chain), taking into account limitations of experimentally accessible unitary operations in quantum simulators.
Cite
@article{arxiv.2507.15948,
title = {Relaxation Control of Open Quantum Systems},
author = {Nicolò Beato and Gianluca Teza},
journal= {arXiv preprint arXiv:2507.15948},
year = {2026}
}
Comments
The data associated with this manuscript version is available under DOI: https://doi.org/10.5281/zenodo.18198689