Thermodynamics of continuous non-Markovian feedback control

Debiossac M, Grass D, Alonso Castaneda JJ, Lutz E, Kiesel N (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Nature Communications Nature Publishing Group: Nature Communications

Book Volume: 11

Article Number: 1360

Journal Issue: 1

DOI: 10.1038/s41467-020-15148-5

Abstract

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.

Authors with CRIS profile

Jose Joaquin Alonso Castaneda Professur für Theoretische Physik

Involved external institutions

Universität Wien / University of Vienna AT Austria (AT) Universität Stuttgart DE Germany (DE)

How to cite

APA:

Debiossac, M., Grass, D., Alonso Castaneda, J.J., Lutz, E., & Kiesel, N. (2020). Thermodynamics of continuous non-Markovian feedback control. Nature Communications, 11(1). https://doi.org/10.1038/s41467-020-15148-5

MLA:

Debiossac, Maxime, et al. "Thermodynamics of continuous non-Markovian feedback control." Nature Communications 11.1 (2020).

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