# Reversible Diffusion by Thermal Fluctuations

@article{Donev2013ReversibleDB, title={Reversible Diffusion by Thermal Fluctuations}, author={Aleksandar Donev and Thomas G. Fai and and E. Vanden-Eijnden}, journal={arXiv: Statistical Mechanics}, year={2013} }

A model for diffusion in liquids that couples the dynamics of tracer particles to a fluctuating Stokes equation for the fluid is investigated in the limit of large Schmidt number. In this limit, the concentration of tracers is shown to satisfy a closed-form stochastic advection-diffusion equation that is used to investigate the collective diffusion of hydrodynamically-correlated tracers through a combination of Eulerian and Lagrangian numerical methods. This analysis indicates that transport in…

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