Force-free and autonomous active Brownian ratchets
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10474047" target="_blank" >RIV/00216208:11320/23:10474047 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=duZssC7b3_" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=duZssC7b3_</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1209/0295-5075/accca5" target="_blank" >10.1209/0295-5075/accca5</a>
Alternative languages
Result language
angličtina
Original language name
Force-free and autonomous active Brownian ratchets
Original language description
Autonomous active Brownian ratchets rectify active Brownian particle motion solely by means of a spatially modulated but stationary activity, without external forces. We argue that such ratcheting requires at least a two-dimensional geometry. The underlying principle is similar to the ratcheting induced by steric obstacles in microswimmer baths: suitably polarized swimmers get channeled, while the others get trapped in low-activity regions until they lose direction. The maximum current is generally reached in the limit of large propulsion speeds, in which the rectification efficiency vanishes. Maximum efficiency is attained at intermediate activities and numerically found to be on the order of a few percent, for ratchets with simple wedge-shaped low-activity regions. open access focus article Copyright (c) 2023 The author(s)
Czech name
—
Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10300 - Physical sciences
Result continuities
Project
<a href="/en/project/GC20-02955J" target="_blank" >GC20-02955J: Dynamics and thermodynamics in artificial and natural active systems with delay</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Europhysics Letters
ISSN
0295-5075
e-ISSN
1286-4854
Volume of the periodical
142
Issue of the periodical within the volume
3
Country of publishing house
FR - FRANCE
Number of pages
8
Pages from-to
31001
UT code for WoS article
000995739600002
EID of the result in the Scopus database
2-s2.0-85160833399