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00925njm 22002777a 4500 dc Pagonabarraga Mora, Ignacio author Hagen, M. H. J. author Lowe, C. P. author Frenkel, Daan, 1948- author 2011-07-07T12:53:27Z 2011-07-07T12:53:27Z 1998 Computer simulations of the dynamics of a colloidal particle suspended in a fluid confined by an interface show that the asymptotic decay of the velocity correlation functions is algebraic. The exponents of the long-time tails depend on the direction of motion of the particle relative to the surface, as well as on the specific nature of the boundary conditions. In particular, we find that for the angular velocity correlation function, the decay in the presence of a slip surface is faster than the one corresponding to a stick one. An intuitive picture is introduced to explain the various long-time tails, and the simulations are compared with theoretical expressions where available. Teoria del transport Matèria condensada Reologia Física estadística Termodinàmica Sistemes dinàmics diferenciables Transport theory Condensed matter Rheology Statistical physics Thermodynamics Differentiable dynamical systems Química física Algebraic decay of velocity fluctuations near a wall