Effective temperature of active matter

Details Effective temperature of active matter Effective temperature of active matter

2007-11-30

arxiv.org/abs/0711.4946v2

Phys. Rev. E 77, 051111 (2008)

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

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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