Mixing and demixing of binary mixtures of polar chiral active particles

Soft Matter
Bao-Quan AiWei-rong Zhong

Abstract

We study a binary mixture of polar chiral (counterclockwise or clockwise) active particles in a two-dimensional box with periodic boundary conditions. Besides the excluded volume interactions between particles, the particles are also subjected to the polar velocity alignment. From the extensive Brownian dynamics simulations, it is found that the particle configuration (mixing or demixing) is determined by the competition between the chirality difference and the polar velocity alignment. When the chirality difference competes with the polar velocity alignment, the clockwise particles aggregate in one cluster and the counterclockwise particles aggregate in the other cluster; thus, the particles are demixed and can be separated. However, when the chirality difference or the polar velocity alignment is dominant, the particles are mixed. Our findings could be used for the experimental pursuit of the separation of binary mixtures of chiral active particles.

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Citations

Apr 4, 2019·Soft Matter·Bao-Quan AiXiao-Miao Zhang
Apr 3, 2020·Soft Matter·Ryan C MaloneyCarol K Hall
May 6, 2020·Soft Matter·Bao-Quan AiXiao-Miao Zhang
Jun 15, 2020·The Journal of Chemical Physics·Fu-Jun LinBao-Quan Ai
Feb 17, 2019·The Journal of Chemical Physics·C Reichhardt, C J O Reichhardt
May 18, 2020·The Journal of Chemical Physics·Wei-Jing ZhuBao-Quan Ai
May 17, 2019·The Journal of Chemical Physics·Bao-Quan AiYa-Feng He
Nov 10, 2018·The Journal of Chemical Physics·Wei-Jing ZhuBao-Quan Ai
Sep 11, 2019·Physical Review. E·Demian Levis, Benno Liebchen
Sep 11, 2019·Physical Review. E·C Reichhardt, C J O Reichhardt
Mar 20, 2021·Physical Review. E·Zahra Fazli, Ali Naji
May 19, 2020·Langmuir : the ACS Journal of Surfaces and Colloids·Ryan C Maloney, Carol K Hall

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