Journal
PHYSICAL REVIEW LETTERS
Volume 110, Issue 26, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.268301
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Funding
- JSPS [P11502]
- Odysseus Program of the Flemish Government
- FWO-VI
- European Commission [256959]
- ARO
- RIKEN iTHES Project
- JSPS-RFBR [12-02-92100]
- MEXT Kakenhi on Quantum Cybernetics
- JSPS via its FIRST program
- Grants-in-Aid for Scientific Research [21102002, 22224007] Funding Source: KAKEN
- Austrian Science Fund (FWF) [P11502] Funding Source: Austrian Science Fund (FWF)
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Brownian transport of self-propelled overdamped microswimmers (like Janus particles) in a two-dimensional periodically compartmentalized channel is numerically investigated for different compartment geometries, boundary collisional dynamics, and particle rotational diffusion. The resulting time-correlated active Brownian motion is subject to rectification in the presence of spatial asymmetry. We prove that ratcheting of Janus particles can be orders of magnitude stronger than for ordinary thermal potential ratchets and thus experimentally accessible. In particular, autonomous pumping of a large mixture of passive particles can be induced by just adding a small fraction of Janus particles.
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