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On the similarities and differences between lattice and off–lattice models of driven fluids

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Abstract.

Microscopic modeling of complex systems by cellular automata, which deal with particles at lattice sites interacting via simple local rules, involves some arbitrariness besides a drastic simplification of nature. Here we briefly report on some recent work on the influence of dynamic details on the morphological and critical properties of one of such model systems. In particular, we discuss on the similarities and differences between a kinetic nonequilibrium Ising model—which is a prototype for nonequilibrium anisotropic phase transitions—and its off–lattice counterpart, namely, an analogue in which the spatial coordinates of the particles vary continuously. We also pay attention to a related driven lattice model with nearest-neighbor exclusion.

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Authors and Affiliations

  1. and Departamento de Electromagnetismo y Física de la Materia, Universidad de Granada, Institute “Carlos I” for Theoretical and Computational Physics, 18071, Granada, Spain

    M. Díez-Minguito, J. Marro & P. L. Garrido

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  1. M. Díez-Minguito
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  2. J. Marro
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  3. P. L. Garrido
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Díez-Minguito, M., Marro, J. & Garrido, P. On the similarities and differences between lattice and off–lattice models of driven fluids. Eur. Phys. J. Spec. Top. 143, 269–272 (2007). https://doi.org/10.1140/epjst/e2007-00101-4

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  • DOI: https://doi.org/10.1140/epjst/e2007-00101-4

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