Engineered swift equilibration of brownian particles: consequences of hydrodynamic coupling

Engineered swift equilibration of brownian particles: consequences of hydrodynamic coupling

We present a detailed theoretical and experimental analysis of Engineered Swift Equilibration (ESE) protocols applied to two hydrodynamically coupled colloids in optical traps. The second particle disturbs slightly (10% at most) the response to an ESE compression applied to a single particle. Thi...

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Bibliographic Details
Main Author: Salambô Dago, Benjamin Besga, Raphaël Mothe, David Guéry-Odelin, Emmanuel Trizac, Artyom Petrosyan, Ludovic Bellon, Sergio Ciliberto
Format: Article
Language:English
Published: SciPost 2020-11-01
Series:SciPost Physics
Online Access:https://scipost.org/SciPostPhys.9.5.064
Description
Summary:We present a detailed theoretical and experimental analysis of Engineered Swift Equilibration (ESE) protocols applied to two hydrodynamically coupled colloids in optical traps. The second particle disturbs slightly (10% at most) the response to an ESE compression applied to a single particle. This effect is quantitatively explained by a model of hydrodynamic coupling. Then we design a coupled ESE protocol for the two particles, allowing the perfect control of one target particle while the second is enslaved to the first. The calibration errors and the limitations of the model are finally discussed in detail.
ISSN:2542-4653

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