Anomalous diffusion of driven particles in supercooled liquids

Abstract

We have performed non-equilibrium dynamics simulations of a binary Lennard-Jones mixture in which an external force is applied on a single tagged particle. For the diffusive properties of this particle parallel to the force superdiffusive behavior at intermediate times as well as giant long-time diffusivity is observed. A quantitative description of this non-trivial behavior is given by a continuous time random walk analysis of the system in configuration space. We further demonstrate, that the same physical properties which are responsible for the superdiffusivity in non-equilibrium systems also determine the non-Gaussian parameter in equilibrium systems.

References in corpus (7)

• Active and Nonlinear Microrheology in Dense Colloidal Suspensions
• Giant Colloidal Diffusivity on Corrugated Optical Vortices
• Fluctuation relation and heterogeneous superdiffusion in glassy transport
• Driving kinetically constrained models into non-equilibrium steady states: structural and slow transport properties
• How coupled elementary units determine the dynamics of macroscopic glass-forming systems
• Microrheology of supercooled liquids in terms of a continuous time random walk
• Negative differential mobility of weakly driven particles in models of glass formers

Cited by in corpus (30)

• Geometry-induced superdiffusion in driven crowded systems
• Particle jumps in structural glasses
• Active Microrheology in Active Matter Systems: Mobility, Intermittency and Avalanches
• Enhancement, slow relaxation, ergodicity and rejuvenation of diffusion in biased continuous-time random walks
• Transport in disordered systems: the single big jump approach
• Time-Dependent Fluctuations and Superdiffusivity in the Driven Lattice Lorentz Gas
• Nonequilibrium fluctuations and enhanced diffusion of a driven particle in a dense environment
• Rare events and scaling properties in field-induced anomalous dynamics
• Observation of strongly heterogeneous dynamics at the depinning transition in a colloidal glass
• Scaling properties of field-induced superdiffusion in Continous Time Random Walks
• Ring statistics in 2D-silica: effective temperatures in equilibrium
• Trace of anomalous diffusion in a biased quenched trap model
• Critical force in active microrheology
• How does the motion of the surrounding molecules depend on the shape of a folding molecular motor ?
• Fluctuations and correlations of a driven tracer in a hard-core lattice gas
• Field-induced superdiffusion and dynamical heterogeneity
• Anomalous field-induced growth of fluctuations in dynamics of a biased intruder moving in a quiescent medium
• From Quenched Disorder to Continuous Time Random Walk
• Understanding the Nonlinear Dynamics of Driven Particles in Supercooled Liquids in Terms of an Effective Temperature
• Microrheology of supercooled liquids in terms of a continuous time random walk
• Dynamics and friction of a large colloidal particle in a bath of hard spheres: Langevin dynamics simulations and hydrodynamic description
• Enhanced diffusion in finite-size simulations of a fragile diatomic glass former
• Time-dependent active microrheology in dilute colloidal suspensions
• The case of the biased quenched trap model in two dimensions with diverging mean dwell times
• Comparison of time reversal symmetric and asymmetric nano-swimmers oriented with an electric field in soft matter
• Time-dependent perpendicular fluctuations in the driven lattice Lorentz gas
• Discontinuous Thinning in Active Microrheology of Soft Complex Matter
• Transmission of mobility via cooperative mechanisms in soft active matter
• Dynamic phase transition induced by active molecules simulating a facilitation mechanism in a supercooled liquid
• Simulation of a flat folding nano-swimmer confined in a nanopore