[en] Using the framework of stochastic thermodynamics, we present an experimental study of a doublet of magnetic colloidal particles that is manipulated by a time-dependent magnetic field. Because of hydrodynamic interactions, each bead experiences a state-dependent friction, which we characterize using a hydrodynamic model. In this work, we compare two estimates of the dissipation in this system: the first one is energy based since it relies on the measured interaction potential, while the second one is information based since it uses only the information content of the trajectories. While the latter only offers a lower bound of the former, we find it to be simple to implement and of general applicability to more complex systems.
Disciplines :
Physique
Auteur, co-auteur :
Tusch, Simon; ESPCI, 10 rue Vauquelin, F-75231 Paris, France > Laboratoire LCMD
Kundu, Anupam; ESPCI, 10 rue Vauquelin, F-75231 Paris, France > Laboratoire de Physico-Chimie Théorique, UMR CNRS Gulliver 7083
VERLEY, Gatien ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Blondel, Thibaud; ESPCI, 10 rue Vauquelin, F-75231 Paris, France > Laboratoire de Physico-Chimie Théorique, UMR CNRS Gulliver 7083
Miralles, Vincent; ESPCI, 10 rue Vauquelin, F-75231 Paris, France > Laboratoire LCMD
Démoulin, Damien; ESPCI, 10 rue Vauquelin, F-75231 Paris, France > Laboratoire LCMD
Lacoste, David; ESPCI, 10 rue Vauquelin, F-75231 Paris, France > Laboratoire de Physico-Chimie Théorique, UMR CNRS Gulliver 7083
Baudry, Jean; ESPCI, 10 rue Vauquelin, F-75231 Paris, France > Laboratoire LCMD
Langue du document :
Anglais
Titre :
Energy versus Information Based Estimations of Dissipation Using a Pair of Magnetic Colloidal Particles
Date de publication/diffusion :
09 mai 2014
Titre du périodique :
Physical Review Letters
ISSN :
0031-9007
eISSN :
1079-7114
Maison d'édition :
American Physical Society, Ridge, Etats-Unis - New York
