Thermally driven two-sphere microswimmer with internal feedback control

Fuente: arXiv
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Autori principali: Li, Jun, Zhang, Ziluo, Hou, Zhanglin, Hosaka, Yuto, Yasuda, Kento, He, Linli, Komura, Shigeyuki
Natura: Preprint
Pubblicazione: 2025
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author Li, Jun
Zhang, Ziluo
Hou, Zhanglin
Hosaka, Yuto
Yasuda, Kento
He, Linli
Komura, Shigeyuki
author_facet Li, Jun
Zhang, Ziluo
Hou, Zhanglin
Hosaka, Yuto
Yasuda, Kento
He, Linli
Komura, Shigeyuki
contents We discuss the locomotion of a thermally driven elastic two-sphere microswimmer with internal feedback control that is realized by the position-dependent friction coefficients. In our model, the two spheres are in equilibrium with independent heat baths having different temperatures, causing a heat flow between the two spheres. We generally show that the average velocity of the microswimmer is nonzero when the friction coefficients are position-dependent. Using the method of stochastic thermodynamics, we obtain the entropy production rate and discuss the efficiency of the two-sphere microswimmer. The proposed self-propulsion mechanism highlights the importance of information in active matter and can be a fundamental process in various biological systems.
format Preprint
id arxiv_https___arxiv_org_abs_2502_20752
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Thermally driven two-sphere microswimmer with internal feedback control
Li, Jun
Zhang, Ziluo
Hou, Zhanglin
Hosaka, Yuto
Yasuda, Kento
He, Linli
Komura, Shigeyuki
Soft Condensed Matter
We discuss the locomotion of a thermally driven elastic two-sphere microswimmer with internal feedback control that is realized by the position-dependent friction coefficients. In our model, the two spheres are in equilibrium with independent heat baths having different temperatures, causing a heat flow between the two spheres. We generally show that the average velocity of the microswimmer is nonzero when the friction coefficients are position-dependent. Using the method of stochastic thermodynamics, we obtain the entropy production rate and discuss the efficiency of the two-sphere microswimmer. The proposed self-propulsion mechanism highlights the importance of information in active matter and can be a fundamental process in various biological systems.
title Thermally driven two-sphere microswimmer with internal feedback control
topic Soft Condensed Matter
url https://arxiv.org/abs/2502.20752