학술논문

Effective temperature of active matter
Document Type
Working Paper
Source
Phys. Rev. E 77, 051111 (2008)
Subject
Condensed Matter - Soft Condensed Matter
Condensed Matter - Statistical Mechanics
Quantitative Biology - Cell Behavior
Language
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.