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Harvesting information to control non-equilibrium states of active matter

We propose to use a correlated noise bath to drive an optically trapped Brownian particle that mimics active biological matter. Thanks to the flexibility and precision of our setup, we are able to control the different parameters that drive the stochastic motion of the particle with unprecedented ac...

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Published in:arXiv.org 2022-11
Main Authors: Goerlich, Rémi, Luís Barbosa Pires, Manfredi, Giovanni, Paul-Antoine Hervieux, Genet, Cyriaque
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creator Goerlich, Rémi
Luís Barbosa Pires
Manfredi, Giovanni
Paul-Antoine Hervieux
Genet, Cyriaque
description We propose to use a correlated noise bath to drive an optically trapped Brownian particle that mimics active biological matter. Thanks to the flexibility and precision of our setup, we are able to control the different parameters that drive the stochastic motion of the particle with unprecedented accuracy, thus reaching strongly correlated regimes that are not easily accessible with real active matter. In particular, by using the correlation time (i.e., the "color") of the noise as a control parameter, we can trigger transitions between two non-equilibrium steady states with no expended work, but only a calorific cost. Remarkably, the measured heat production is directly proportional to the spectral entropy of the correlated noise, in a fashion that is reminiscent of Landauer's principle. Our procedure can be viewed as a method for harvesting information from the active fluctuations.
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subjects Active control
Brownian motion
Correlation
Noise
Noise control
Parameters
title Harvesting information to control non-equilibrium states of active matter
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