Prethermalization in aperiodically kicked many-body dynamics
Abstract
Driven many-body systems typically experience heating due to the lack of energy conservation. Heating may be suppressed for time-periodic drives, but little is known for less regular drive protocols. In this work, we investigate the heating dynamics in aperiodically kicked systems, specifically those driven by quasi-periodic Thue-Morse or a family of random sequences with -multipolar temporal correlations. We demonstrate that multiple heating channels can be eliminated even away from the high-frequency regime. The number of eliminated channels increases with multipolar order . We illustrate this in a classical kicked rotor chain where we find a long-lived prethermal regime. When the static Hamiltonian only involves the kinetic energy, the prethermal lifetime can strongly depend on the temporal correlations of the drive, with a power-law dependence on the kick strength , for which we can account using a simple linearization argument.
Cite
@article{arxiv.2306.16144,
title = {Prethermalization in aperiodically kicked many-body dynamics},
author = {Jin Yan and Roderich Moessner and Hongzheng Zhao},
journal= {arXiv preprint arXiv:2306.16144},
year = {2023}
}