title: Energy versus information based estimations of dissipation using a pair of magnetic colloidal particles.
abstract: 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.
authors.affiliation: Laboratoire LCMD, ESPCI, 10 rue Vauquelin, F-75231 Paris, France.
authors.forename: S
authors.initials: S
authors.lastname: Tusch
authors.affiliation: Laboratoire de Physico-Chimie Théorique, UMR CNRS Gulliver 7083, ESPCI, 10 rue Vauquelin, F-75231 Paris, France.
authors.forename: A
authors.initials: A
authors.lastname: Kundu
authors.affiliation: Laboratoire de Physico-Chimie Théorique, UMR CNRS Gulliver 7083, ESPCI, 10 rue Vauquelin, F-75231 Paris, France.
authors.forename: G
authors.initials: G
authors.lastname: Verley
authors.affiliation: Laboratoire de Physico-Chimie Théorique, UMR CNRS Gulliver 7083, ESPCI, 10 rue Vauquelin, F-75231 Paris, France.
authors.forename: T
authors.initials: T
authors.lastname: Blondel
authors.affiliation: Laboratoire LCMD, ESPCI, 10 rue Vauquelin, F-75231 Paris, France.
authors.forename: V
authors.initials: V
authors.lastname: Miralles
authors.affiliation: Laboratoire LCMD, ESPCI, 10 rue Vauquelin, F-75231 Paris, France.
authors.forename: D
authors.initials: D
authors.lastname: Démoulin
authors.affiliation: Laboratoire de Physico-Chimie Théorique, UMR CNRS Gulliver 7083, ESPCI, 10 rue Vauquelin, F-75231 Paris, France.
authors.forename: D
authors.initials: D
authors.lastname: Lacoste
authors.affiliation: Laboratoire LCMD, ESPCI, 10 rue Vauquelin, F-75231 Paris, France.
authors.forename: J
authors.initials: J
authors.lastname: Baudry