Spectral switching of autonomous quantum operations
Quantum Physics
2026-03-27 v2
Abstract
We introduce a framework for implementing quantum operations as steady states of a subsystem in an extended Hilbert space. Each operation has a spectral criterion for reaching the steady state. This adds a `spectral switch' mechanism to the emerging field of autonomous control where operations are implemented on states within a specified energy range. These operations are dissipative in the sense that they have guaranteed steady states in a subsystem. With this perspective, we reveal a fundamentally new type of dissipative operation that is not describable as a mapping from initial to steady state of a time-independent Lindblad equation.
Cite
@article{arxiv.2510.10394,
title = {Spectral switching of autonomous quantum operations},
author = {Man Yin Cheung and Mona Berciu and Kyle Monkman},
journal= {arXiv preprint arXiv:2510.10394},
year = {2026}
}