title: Effective temperature of active matter.
abstract: We follow the dynamics of an ensemble of interacting self-propelled motorized particles in contact with an equilibrated thermal bath. We find that the fluctuation-dissipation relation allows for the definition of an effective temperature that is compatible with the results obtained using a tracer particle as a thermometer. The effective temperature takes a value which is higher than the temperature of the bath, and it is continuously controlled by the motor intensity.
authors.affiliation: European Synchrotron Radiation Facility, Boîte Postale 220, F-38043 Grenoble, France.
authors.forename: Davide
authors.initials: D
authors.lastname: Loi
authors.forename: Stefano
authors.initials: S
authors.lastname: Mossa
authors.forename: Leticia F
authors.initials: LF
authors.lastname: Cugliandolo