Abstract
The motion of a single active particle in one dimension with quenched disorder under the external force is investigated. Within the tailored parameter range, anomalous diffusion that displays weak ergodicity breaking is observed, i.e., non-ergodic subdiffusion and non-ergodic superdiffusion. This non-ergodic anomalous diffusion is analyzed through the time-dependent probability distributions of the particle’s velocities and positions. Its origin is attributed to the relative weights of the locked state (predominant in the subdiffusion state) and running state (predominant in the superdiffusion state). These results may contribute to understanding the dynamical behavior of self-propelled particles in nature and the extraordinary response of nonlinear dynamics to the externally biased force.
Funder
the National Natural Science Foundation of China
the Yunnan Province Applied Basic Research Project
the Graduate Program of Scientific Research Foundation of Yunnan Education Department
the Program for Frontier Research Team of Kunming University 2023
the Xingdian Talent Support Project
the Young Top-notch Talent of Kunming
the Program for Innovative Research Team at Kunming University
Publisher
Public Library of Science (PLoS)
Cited by
2 articles.
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