Título:
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Self-diffusion in simple models: Systems with long-range jumps
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Autores:
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Asselah, A. ;
Brito, Ricardo ;
Lebowitz, J. L.
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Tipo de documento:
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texto impreso
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Editorial:
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Springer, 1997-06
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Termodinámica
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Tipo = Artículo
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Resumen:
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We review some exact results for the morion of a tagged particle in simple models. Then, we study the density dependence of the sill-diffusion coefficient D_(N)(?) in lattice systems with simple symmetric exclusion in which the particles can jump, with equal rates, to a set of N neighboring sites. We obtain positive upper and lower bounds on F_(N)(?) = N{(1 - ?) - [D_(N)(?)/D_(N)(0)]}/[?(1 - ?)] for ? is an element of [0, 1]. Computer simulations for the square, triangular, and one-dimensional lattices suggest that FN becomes effectively independent of N for N greater than or equal to 20.
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En línea:
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https://eprints.ucm.es/id/eprint/21862/2/Brito25preprint.pdf
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