Effective temperature and glassy dynamics of active matter

Shenshen Wang; Peter G. Wolynes

doi:10.1063/1.3624753

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arXiv · 1106.1687

Effective temperature and glassy dynamics of active matter

Shenshen Wang·Peter G. Wolynes

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Abstract

A systematic expansion of the many-body master equation for active matter, in which motors power configurational changes as in the cytoskeleton, is shown to yield a description of the steady state and responses in terms of an effective temperature. The effective temperature depends on the susceptibility of the motors and a Peclet number which measures their strength relative to thermal Brownian diffusion. The analytic prediction is shown to agree with previous numerical simulations and experiments. The mapping also establishes a description of aging in active matter that is also kinetically jammed.

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Shenshen Wang, Peter G. Wolynes. 2011-06-10. Effective temperature and glassy dynamics of active matter. https://doi.org/10.1063/1.3624753

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