Single-file diffusion of externally driven particles
نویسندگان
چکیده
منابع مشابه
Single-file diffusion of macroscopic charged particles.
In this paper, we study a macroscopic system of electrically interacting metallic beads organized as a sequence along an annulus. A random mechanical shaking mimics the thermal excitation. We exhibit non-Fickian diffusion (single-file diffusion) at large time. We measure the mobility of the particles and compare it to theoretical expectations. We show that our system cannot be accurately descri...
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The self-diffusion of particles restricted to one-dimensional channels is termed single-filc difTusion if individual particles are unable to pass each otlicr. We cmploy thc interference pattern of two coherent lascr hcaii~s lo confinc clcclricall y charged polystyrene colloids in parallel "optical channels" formed by light forces arid study the particle Q -H. Wci . C. Rcchinycr (X) . P. 1,cidcr...
متن کاملAnalysis of models of single-file diffusion.
Theoretical models of single-file transport in a homogeneous channel are considered. Three levels of channel populations were specified for which different approximations could be used. The results of these approximations are in good agreement with the results of a computer experiment (Aityan and Portnov 1986). At low populations, the pair correlation functions were negligibly small and allowed...
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Over the past several years we have been studying a phenomena, Random Organization, whereby apparently random interactions between particles in a driven system lead to their self-organization [1]. Particles in a viscous flow with periodic shear initially collide and undergo chaotic diffusive motion. The collisions allow the system to explore different local configurations and evolve. If the und...
متن کاملLangevin formulation for single-file diffusion.
We introduce a stochastic equation for the microscopic motion of a tagged particle in the single-file model. This equation provides a compact representation of several of the system's properties such as fluctuation-dissipation and linear-response relations, achieved by means of a diffusion noise approach. Most importantly, the proposed Langevin equation reproduces quantitatively the three tempo...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2011
ISSN: 1539-3755,1550-2376
DOI: 10.1103/physreve.83.020106