Chinese Physics B, Volume. 29, Issue 9, (2020)
Active Brownian particles simulated in molecular dynamics
Fig. 1. (a) A snapshot of the simulation showing a dilute suspension of three active particles in the simulation box. The red particles are the head particles and the blue particles are the fluid particles in the phantom regions. Fluid particles out of the phantom regions are not shown here. Due to the periodic boundary conditions, the fluid body of one active particle is separated into four parts. (b) The ABP modeled in this work. A force dipole is exerted on the head particle and the phantom region of fluid to model a pusher.
Fig. 2. (a) Exponential decay of the orientational time correlation function
Fig. 3. (a) Gaussian distribution of the axial velocity
Fig. 4. Dependence of the standard deviation
Fig. 5. Trajectories of a PBP and three ABPs with
Fig. 6. (a) MSD for PBPs (solid line), with
Fig. 7. MD simulation results for the dependence of
Fig. 8. The equilibrium PDF
Fig. 9. Evolution of the PDF
Fig. 10. The PDF
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Liya Wang, Xinpeng Xu, Zhigang Li, Tiezheng Qian. Active Brownian particles simulated in molecular dynamics[J]. Chinese Physics B, 2020, 29(9):
Received: May. 25, 2020
Accepted: --
Published Online: Apr. 29, 2021
The Author Email: Qian Tiezheng (maqian@ust.hk)