Transport reversals of chiral active particles induced by a perpendicular constant force

Transport of chiral active particles in a symmetric periodic potential is investigated in the presence of a constant force. It is found that due to chirality of active particles the transversal constant force can break the symmetry of the system and induce a longitudinal net current. There exists an...

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Bibliographic Details
Published in:Physica A 2016-11, Vol.462, p.864-869
Main Authors: Wu, Jian-chun, Zhou, Jia-ning, Ai, Bao-quan
Format: Article
Language:English
Subjects:
Chiral particles
Particle separation
Transport
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Summary:Transport of chiral active particles in a symmetric periodic potential is investigated in the presence of a constant force. It is found that due to chirality of active particles the transversal constant force can break the symmetry of the system and induce a longitudinal net current. There exists an optimal constant force at which the rectification is maximal. Remarkably, longitudinal current reversals can occur by suitably tailoring the transversal constant force. Therefore, particles with different chiralities move to different directions and can be effectively separated. •Perpendicular constant force can induce the rectification of chiral active particles.•The transport direction can be reversed under appropriate conditions.•Active particles with different chiralities can be effectively separated.
ISSN:0378-4371
1873-2119
DOI:10.1016/j.physa.2016.06.141