https://doi.org/10.1140/epjb/s10051-021-00248-y
Regular Article - Statistical and Nonlinear Physics
Controlling the diffusion of bistable active clusters in one-dimensional channels
1
Siyuan Laboratory, Department of Physics, Jinan University, 510632, Guangzhou, China
2
Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, 510006, Guangzhou, China
Received:
20
September
2021
Accepted:
15
November
2021
Published online:
7
March
2022
A two-cluster system with a bistable potential is constructed in one-dimensional channels. Using molecular dynamics and Monte Carlo methods, we study the collective diffusion properties of the bistable cluster system. It is shown that the internal structure of the bistable cluster can greatly influence the diffusion behavior, which is different from simple particle systems. The collective diffusion coefficients of two states can differ by two orders of magnitude. An explanation is found from the distance distribution between two clusters. This study provides theoretical guidance for understanding the particularity of complex active structures in diffusion behavior. If the results are extended to active matter, it can be understood that the active matter can regulate the diffusion ability by changing its own morphology or stability.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2022
