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arXiv · 2510.25875

Control of memory effects in a spin-boson system by periodic driving

Pietro Follia·Bassano Vacchini·Heinz-Peter Breuer
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Abstract

We study the emergence of quantum memory effects in a spin-boson system at finite temperature driven by an external time-periodic force. Quantifying memory effects by the trace-distance based measure for non-Markovianity and performing numerical simulations employing the hierarchical equations of motion approach, we find a pronounced peak structure when plotting the non-Markovianity measure as a function of the driving amplitude. This distinctive feature is interpreted using Floquet theory and the Floquet-Lindblad master equation, associating the peaks with the degeneracies of the quasienergy spectrum which lead to a strong enhancement of the relaxation times of the system. These results suggest strategies for the efficient control of non-Markovianity in open quantum systems by periodic driving.

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Pietro Follia, Bassano Vacchini, Heinz-Peter Breuer. 2025-10-29. Control of memory effects in a spin-boson system by periodic driving. https://doi.org/10.1103/g55y-8j7x

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