Effective temperature and glassy dynamics of active matter

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.

2 figures

References in corpus (1)

• The Interplay of Nonlinearity and Architecture in Equilibrium Cytoskeletal Mechanics

Cited by in corpus (6)

• Active contractility in actomyosin networks
• Mode-Coupling Theory for Active Brownian Particles
• Nonequilibrium mode-coupling theory for dense active systems of self-propelled particles
• Dynamics of a homogeneous active dumbbell system
• Tensegrity and Motor-Driven Effective Interactions in a Model Cytoskeleton
• Active patterning and asymmetric transport in a model actomyosin network