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 | |
| Publication status | Published - Nov 15 2017 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Thermally Driven Elastic Micromachines. / Hosaka, Yuto; Yasuda, Kento; Sou, Isamu; Okamoto, Ryuichi; Komura, Shigeyuki.
In: Journal of the Physical Society of Japan, Vol. 86, No. 11, 113801, 15.11.2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Thermally Driven Elastic Micromachines
AU - Hosaka, Yuto
AU - Yasuda, Kento
AU - Sou, Isamu
AU - Okamoto, Ryuichi
AU - Komura, Shigeyuki
PY - 2017/11/15
Y1 - 2017/11/15
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85035816825&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85035816825&partnerID=8YFLogxK
U2 - 10.7566/JPSJ.86.113801
DO - 10.7566/JPSJ.86.113801
M3 - Article
AN - SCOPUS:85035816825
VL - 86
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 11
M1 - 113801
ER -