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arXiv · 0711.4946

Effective temperature of active matter

Davide Loi·Stefano Mossa·Leticia F. Cugliandolo
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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.

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Davide Loi, Stefano Mossa, Leticia F. Cugliandolo. 2011-05-04. Effective temperature of active matter. https://doi.org/10.1103/physreve.77.051111

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