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arXiv 2108.02885cond-mat.stat-mech
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使用信息引擎的轨迹控制

Trajectory control using an information engine

Tushar K. Saha, John Bechhoefer

摘要:

我们已经建立了一个信息引擎,可以通过使用来自热浴的有利波动来将珠子沿所需方向运输。然而,在其原始配方中,信息引擎产生波动的速度,并且不能控制珠子的位置。在这里,我们介绍了一种反馈算法,可以控制珠子的位置,遵循所需的轨迹。如果最大期望速度低于发动机的最大平均速度,则珠可以跟踪路径。测量反馈算法可以跟踪的频率范围,我们发现带宽略低于陷阱中珠子的拐角频率。

英文摘要:

We have built an information engine that can transport a bead in a desired direction by using favorable fluctuations from the thermal bath. However, in its original formulation, the information engine generates a fluctuating velocity and cannot control the position of the bead. Here, we introduce a feedback algorithm that can control the bead's position, to follow a desired trajectory. The bead can track the path if the maximum desired velocity is below the engine's maximum average velocity. Measuring the range of frequency that the feedback algorithm can track, we find a bandwidth that is slightly lower than the corner frequency of the bead in the trap.

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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