Issue |
EPL
Volume 114, Number 3, May 2016
|
|
---|---|---|
Article Number | 30002 | |
Number of page(s) | 6 | |
Section | General | |
DOI | https://doi.org/10.1209/0295-5075/114/30002 | |
Published online | 25 May 2016 |
Reciprocating motion of active deformable particles
1 Fukui Institute for Fundamental Chemistry, Kyoto University - Kyoto, 606-8103, Japan
2 Department of Physics, The University of Tokyo - Tokyo 113-0033, Japan
3 Toyota Physical and Chemical Research Institute - Nagakute, Aichi 480-1192, Japan
Received: 4 February 2016
Accepted: 10 May 2016
Reciprocating motion of an active deformable particle in a homogeneous medium is studied theoretically. For generality, we employ a simple model derived from symmetry considerations for the center-of-mass velocity and elliptical and triangular deformations in two dimensions. We carry out, for the first time, a systematic investigation of the reciprocating motion of a self-propelled particle. It is clarified that spontaneous breaking of the front-rear asymmetry is essential for the reciprocating motion. Moreover, two routes are found for the formation of the reciprocating motion. One is a bifurcation from a motionless stationary state. The other is destabilisation of an oscillatory rectilinear motion.
PACS: 05.45.-a – Nonlinear dynamics and chaos / 05.70.Ln – Nonequilibrium and irreversible thermodynamics / 82.40.Bj – Oscillations, chaos, and bifurcations
© EPLA, 2016
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.