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

• URL: http://arxiv.org/abs/2510.25875v1
• Date: Wed, 29 Oct 2025 18:19:23 GMT
• Title: Control of memory effects in a spin-boson system by periodic driving
• Abstract summary: We study the emergence of quantum memory effects in a spin-boson system driven by an external time-periodic force.<n>We find a pronounced peak structure when plotting the non-Markovianity measure as a function of the driving amplitude.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• 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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