| Issue |
EPL
Volume 102, Number 4, May 2013
|
|
|---|---|---|
| Article Number | 40012 | |
| Number of page(s) | 6 | |
| Section | General | |
| DOI | https://doi.org/10.1209/0295-5075/102/40012 | |
| Published online | 12 June 2013 | |
Large fluctuation and Lévy movement of an active deformable particle
1 Institute for Research on Earth Evolution, JAMSTEC - Kanazawa-ku, Yokohama, Japan
2 Department of Physics, The University of Tokyo - Hongo, Bunkyo-ku, Tokyo, Japan
Received: 4 February 2013
Accepted: 17 May 2013
We consider random walks of active deformable particles (ADP) that can move by actively deforming their shape from a sphere. A theory is developed by assuming that the equation of velocity includes a coupling with active random deformation. It is shown that the model exhibits a truncated power-law distribution of velocity, whose exponent is determined by the intensity of the random deformation and the strength of the dissipation. Two characteristic variants of the ADP model that have different preferences in the direction of the deformation are investigated in detail.
PACS: 05.40.Fb – Random walks and Levy flights / 05.70.Ln – Nonequilibrium and irreversible thermodynamics / 87.17.Jj – Cell locomotion, chemotaxis
© EPLA, 2013
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.