arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1904.04889quant-phcond-mat.mes-hallcond-mat.stat-mech
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连续非马尔可夫反馈控制的热力学

Thermodynamics of continuous non-Markovian feedback control

Maxime Debiossac, David Grass, Jose Joaquin Alonso, Eric Lutz, Nikolai Kiesel

摘要:

反馈控制机制在科学技术中无处不在,在调节物理、生物和工程系统中发挥着重要作用。标准的热力学第二定律在测量和反馈存在的情况下不成立。到目前为止,大多数研究都扩展了离散,马尔可夫反馈协议的第二定律,然而,非马尔可夫反馈是无所不在的过程中,控制信号施加一个不可忽略的延迟。在这里,我们实验研究的热力学连续,时间延迟反馈控制使用的光悬浮,欠阻尼微粒的运动。我们测试的有效性,广义第二定律的界限从系统中提取的能量和研究的故障反馈冷却非常大的时间延迟。

英文摘要:

Feedback control mechanisms are ubiquitous in science and technology, and play an essential role in regulating physical, biological and engineering systems. The standard second law of thermodynamics does not hold in the presence of measurement and feedback. Most studies so far have extended the second law for discrete, Markovian feedback protocols; however, non-Markovian feedback is omnipresent in processes where the control signal is applied with a non-negligible delay. Here, we experimentally investigate the thermodynamics of continuous, time-delayed feedback control using the motion of an optically levitated, underdamped microparticle. We test the validity of a generalized second law which bounds the energy extracted from the system and study the breakdown of feedback cooling for very large time delays.

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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