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Relaxation Control of Open Quantum Systems
Nicolò Beato, Gianluca Teza·July 21, 2025·DOI: 10.1103/4frd-ck2z
Quantum Physicscond-mat.quant-gascond-mat.stat-mech
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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.