Artículo
Anomalous self-diffusion in a freely evolving granular gas near the shearing instability
Autor/es | Brey Abalo, José Javier
Ruiz Montero, María José |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2015 |
Fecha de depósito | 2020-05-27 |
Publicado en |
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Resumen | The self-diffusion coefficient of a granular gas in the homogeneous cooling state is analyzed near the shearing instability. Using mode-coupling theory, it is shown that the coefficient diverges logarithmically as the ... The self-diffusion coefficient of a granular gas in the homogeneous cooling state is analyzed near the shearing instability. Using mode-coupling theory, it is shown that the coefficient diverges logarithmically as the instability is approached, due to the coupling of the diffusion process with the shear modes. The divergent behavior, which is peculiar in granular gases and disappears in the elastic limit, does not depend on any other transport coefficient. The theoretical prediction is confirmed by molecular dynamics simulation results for two-dimensional systems. |
Agencias financiadoras | Ministerio de Economía y Competitividad (MINECO). España |
Identificador del proyecto | Grant No. FIS2014-53808-P |
Cita | Brey Abalo, J.J. y Ruiz Montero, M.J. (2015). Anomalous self-diffusion in a freely evolving granular gas near the shearing instability. Physical Review E, 92 (1), 010201-1-010201-5. |
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pubPhysRevE.92.010201.pdf | 202.9Kb | [PDF] | Ver/ | |