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arXiv · 2507.15948

Relaxation Control of Open Quantum Systems

Nicolò Beato·Gianluca Teza
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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.

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Nicolò Beato, Gianluca Teza. 2025-07-21. Relaxation Control of Open Quantum Systems. https://doi.org/10.1103/4frd-ck2z

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