Induced long-time correlations in a two-component lattice gas
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The distinguishability of at least two species of particles in the classical lattice gas with no interactions except hard-core exclusion entails additional interparticle correlations. A nonlinear mixing flow appears and manifests itself most pronouncedly in the case of signi- ficant difference between mobilities of species. It may cause induced correlations for a slow component mediated by a fast one. In the quasi-one-dimensional case, the long-time correlations are demonstrated to take place in a slow component, which is similar to the hydrodynamic correlations between colloidal particles. In the adiabatic approximation, these correlations may come into play only in the non-equilibrium case with the flow of a fast component present in the system.
KeywordsEuropean Physical Journal Special Topic Slow Component Pair Correlation Function Fast Component Adiabatic Approximation
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