Journal
CHAOS
Volume 32, Issue 11, Pages -Publisher
AIP Publishing
DOI: 10.1063/5.0117902
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Funding
- NCN [2017/26/D/ST2/00543, 2018/30/E/ST3/00428]
- PLGrid Infrastructure
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We revisited the problem of diffusion in a driven system and discovered normal diffusion and intriguing giant damped quasiperiodic oscillations in the long time limit. We identified the mechanism behind this effect and suggested experimental verification.
We revisit the problem of diffusion in a driven system consisting of an inertial Brownian particle moving in a symmetric periodic potential and subjected to a symmetric time-periodic force. We reveal parameter domains in which diffusion is normal in the long time limit and exhibits intriguing giant damped quasiperiodic oscillations as a function of the external driving amplitude. As the mechanism behind this effect, we identify the corresponding oscillations of difference in the number of locked and running trajectories that carry the leading contribution to the diffusion coefficient. Our findings can be verified experimentally in a multitude of physical systems, including colloidal particles, Josephson junction, or cold atoms dwelling in optical lattices, to name only a few.
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