Thermally Driven Elastic Micromachines

Yuto Hosaka; Kento Yasuda; Isamu Sou; Ryuichi Okamoto; Shigeyuki Komura

doi:10.7566/JPSJ.86.113801

Thermally Driven Elastic Micromachines

Yuto Hosaka, Kento Yasuda, Isamu Sou, Ryuichi Okamoto, Shigeyuki Komura

Research Institute for Interdisciplinary Science

Research output: Contribution to journal › Article

4 Citations (Scopus)

Abstract

We discuss the directional motion of an elastic three-sphere micromachine in which the spheres are in equilibrium with independent heat baths having different temperatures. Even in the absence of prescribed motion of springs, such a micromachine can gain net motion purely because of thermal fluctuations. A relation connecting the average velocity and the temperatures of the spheres is analytically obtained. This velocity can also be expressed in terms of the average heat flows in the steady state. Our model suggests a new mechanism for the locomotion of micromachines in nonequilibrium biological systems.

Original language	English
Article number	113801
Journal	Journal of the Physical Society of Japan
Volume	86
Issue number	11
DOIs	https://doi.org/10.7566/JPSJ.86.113801
Publication status	Published - Nov 15 2017

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ASJC Scopus subject areas

Physics and Astronomy(all)

Cite this

Hosaka, Y., Yasuda, K., Sou, I., Okamoto, R., & Komura, S. (2017). Thermally Driven Elastic Micromachines. Journal of the Physical Society of Japan, 86(11), [113801]. https://doi.org/10.7566/JPSJ.86.113801

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10.7566/JPSJ.86.113801