Demixing of active particles in the presence of external fields
arXiv:1706.07633 · doi:10.1063/1.4992797
Abstract
Active systems are inherently out of equilibrium, as they collect energy from their surroundings and transform it into directed motion. A recent theoretical study suggests that binary mixtures of active particles with distinct effective diffusion coefficients exhibit dynamical demixing above a threshold ratio of the diffusion coefficients. Here, we show that this threshold may be reduced drastically in the presence of external fields. We investigate the demixing as a function of the ratio of the diffusion coefficients and discuss the implications of the results for active systems.
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Cited by in corpus (7)
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- Effective equilibrium states in mixtures of active particles driven by colored noise
- Rectification in a mixture of active and passive particles subject to a ratchet potential
- Pattern formation and phase transition in the collective dynamics of a binary mixture of polar self-propelled particles
- Colloidal Brazil nut effect in microswimmer mixtures induced by motility contrast
- Field-driven dynamical demixing of binary mixtures
- Demixing of two species via reciprocally concentration-dependent diffusivity