Self-diffusion beyond Fick's law

I.M. de Schepper and M.H. Ernst

Physica A: Statistical Mechanics and its Applications, 1979, vol. 98, issue 1, 189-214

Abstract: The Van Hove self-correlation function, the intermediate incoherent scattering function and its Laplace transform are determined asymptotically for a one component fluid in equilibrium, using the mode coupling theory. The results reproduce in the hydrodynamic limit the predictions from Fick's law. The corrections to Fick's law are consistent with a long time tail in the velocity correlation function and with a diverging super Burnett coefficient in the linear diffusion equation.

Date: 1979
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:98:y:1979:i:1:p:189-214

DOI: 10.1016/0378-4371(79)90173-0

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