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arXiv 1709.07595cond-mat.soft
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热驱动弹性微机械

Thermally Driven Elastic Micromachines

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

摘要:

讨论了弹性三球微机械的定向运动,其中球与具有不同温度的独立热浴平衡。即使没有弹簧的预定运动,这种微机械也可以纯粹由于热波动而获得净运动。解析地得到了球的平均速度与温度之间的关系。这个速度也可以用稳态下的平均热流来表示。我们的模型提出了一种新的机制,在非平衡生物系统中的运动的微机械。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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