Molecular dynamics simulations are performed for binary liquids confined in the pores of Vycor glass. The individual molecular motions are studied by computing Fs, the self-part of the concentration fluctuation autocorrelation function. The results for Fs(q,t) show that the diffusion is anomalous as its relaxation rate does not follow the usual q2 dependence on the probing wave vector q. This is explained as a confining effect of the glass walls.

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