Lattice gases in slab geometries

Non-mean-field-type excess correlations at short times are present in three-dimensional (3D) computer simulations of the velocity autocorrelation function, but absent in 1D, 2D, and 4D. They are caused by ring collisions in a quasi-3D slab of size 2 x L x L x L in a face-centered-hypercubic lattice...

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Detalles Bibliográficos
Autores: Ernst, M. H., Brito López, Ricardo
Tipo de recurso: artículo
Fecha de publicación:1991
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/58633
Acceso en línea:https://hdl.handle.net/20.500.14352/58633
Access Level:acceso abierto
Palabra clave:536
Mode-Coupling Theory
Cellular Automaton
Termodinámica
2213 Termodinámica
Descripción
Sumario:Non-mean-field-type excess correlations at short times are present in three-dimensional (3D) computer simulations of the velocity autocorrelation function, but absent in 1D, 2D, and 4D. They are caused by ring collisions in a quasi-3D slab of size 2 x L x L x L in a face-centered-hypercubic lattice with periodic boundary conditions, which is the only available lattice-gas cellular automaton with 3D isotropic fluid flow. We evaluate this excess correlation. The simulation data agree very well with our exact result.