Dynamics and escape of active particles in a harmonic trap
Dan Wexler, Nir S. Gov, K. Ø. Rasmussen, Golan Bel
Abstract
The authors show that for active particles that are not overdamped the different definitions of the effective temperature lead to different results. Newly derived second moments for the position and velocity of active particles are used to define effective temperatures, and characterize the escape process of active particles from potential wells, for short correlation times of the active force while another modification of Kramers' law is derived for long correlation times.
Topics & Concepts
Kinetic energyMean kinetic temperatureDynamics (music)Statistical physicsPhysicsParticle (ecology)Potential energyThermalHarmonicClassical mechanicsThermodynamicsQuantum mechanicsAtomic physicsAcousticsOceanographyGeologyMicro and Nano RoboticsAdvanced Thermodynamics and Statistical Mechanicsstochastic dynamics and bifurcation