Aging in thermal active glasses
arXiv:2105.05705 · doi:10.1103/PhysRevResearch.4.L012038
Abstract
It is well established that glassy materials can undergo aging, i.e., their properties gradually change over time. There is rapidly growing evidence that dense active and living systems also exhibit many features of glassy behavior, but it is still largely unknown how physical aging is manifested in such active glassy materials. Our goal is to explore whether active and passive thermal glasses age in fundamentally different ways. To address this, we numerically study the aging dynamics following a quench from high to low temperature for two-dimensional passive and active Brownian model glass-formers. We find that aging in active thermal glasses is governed by a time-dependent competition between thermal and active effects, with an effective temperature that explicitly evolves with the age of the material. Moreover, unlike passive aging phenomenology, we find that the degree of dynamic heterogeneity in active aging systems is relatively small and remarkably constant with age. We conclude that the often-invoked mapping between an active system and a passive one with a higher effective temperature rigorously breaks down upon aging, and that the aging dynamics of thermal active glasses differs in several distinct ways from both the passive and athermal active case.
References in corpus (43)
- Active Particles in Complex and Crowded Environments
- Self-motile colloidal particles: from directed propulsion to random walk
- Theoretical perspective on the glass transition and amorphous materials
- The Mechanics and Statistics of Active Matter
- Testing Mode-Coupling Theory for a Supercooled Binary Lennard-Jones Mixture I: The van Hove Correlation Function
- Active Brownian Particles. From Individual to Collective Stochastic Dynamics
- Dynamical heterogeneities in a supercooled Lennard-Jones liquid
- A density-independent glass transition in biological tissues
- Direct experimental evidence of a growing length scale accompanying the glass transition
- Motility-driven glass and jamming transitions in biological tissues
- Spatial Correlations of Mobility and Immobility in a Glassforming Lennard-Jones Liquid
- Emergent behavior in active colloids
- Active Jamming: Self-propelled soft particles at high density
- Perspective: The Glass Transition
- Computational models for active matter
- Nonequilibrium glass transitions in driven and active matter
- Aging Effects in a Lennard-Jones Glass
- Inertial effects of self-propelled particles: from active Brownian to active Langevin motion
- Glassy Aging Dynamics
- Irreversibility in active matter systems: Fluctuation theorem and mutual information
- Pushing the glass transition towards random close packing using self-propelled hard spheres
- Nonequilibrium glassy dynamics of self-propelled hard disks
- Fundamental differences between glassy dynamics in two and three dimensions
- Perspective: Nonequilibrium glassy dynamics in dense systems of active particles
- Glassy dynamics of athermal self-propelled particles: Computer simulations and a nonequilibrium microscopic theory
- Active phase separation by turning toward regions of higher density
- The nonequilibrium glassy dynamics of self-propelled particles
- Fluctuation dissipation ratio in an aging Lennard-Jones glass
- Feedback-Controlled Active Brownian Colloids with Space-Dependent Rotational Dynamics
- Fluctuations, response and aging dynamics in a simple glass-forming liquid out of equilibrium
- How active forces influence nonequilibrium glass transitions
- Active glasses
- Mode-Coupling Theory for Active Brownian Particles
- Active glass: ergodicity breaking dramatically affects response to self-propulsion
- A theory for the dynamics of dense systems of athermal self-propelled particles
- Dynamic particle tracking reveals the aging temperature of a colloidal glass
- A direct link between active matter and sheared granular systems
- Aging and rejuvenation of active matter under topological constraints
- Non-Equilibrium Phase Transition in an Atomistic Glassformer: the Connection to Thermodynamics
- Nonlinear Rheology in a Model Biological Tissue
- Multiple Types of Aging in Active Glass
- Nonmonotonic behavior in the dense assemblies of active colloids
- Aging in short-ranged attractive colloids: A numerical study