Bath-Mediated Interactions between Driven Tracers in Dense Single-Files

Abstract

Single-file transport, where particles cannot bypass each other, has been observed in various experimental setups. In such systems, the behaviour of a tracer particle (TP) is subdiffusive, which originates from strong correlations between particles. These correlations are especially marked when the TP is driven and leads to inhomogeneous density profiles. Determining the impact of this inhomogeneity when several TPs are driven in the system is a key question, related to the general issue of bath-mediated interactions, which are known to induce collective motion and lead to the formation of clusters or lanes in a variety of systems. Quantifying this collective behaviour, the emerging interactions and their dependence on the amplitude of forces driving the TPs, remains a challenging but largely unresolved issue. Here, considering dense single-file systems, we analytically determine the entire dynamics of the correlations and reveal out of equilibrium cooperativity and competition effects between driven TPs.

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Cited by in corpus (7)

• Bodies in an Interacting Active Fluid: Far-Field Influence of a Single Body and Interaction Between Two Bodies
• Tracer Diffusion on a Crowded Random Manhattan Lattice
• Cumulant generating functions of a tracer in quenched dense symmetric exclusion processes
• Field-driven tracer diffusion through curved bottlenecks: Fine structure of first passage events
• Driven Tracers in a One-Dimensional Periodic Hard-Core Lattice Gas
• Attraction and condensation of driven tracers in a narrow channel
• Tracer and current fluctuations in driven diffusive systems