Artículo
Memory effect in uniformly heated granular gases
Autor/es | Trizac, Emmanuel
Prados Montaño, Antonio |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2014 |
Fecha de depósito | 2020-05-13 |
Publicado en |
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Resumen | We evidence a Kovacs-like memory effect in a uniformly driven granular gas. A system of inelastic hard
particles, in the low density limit, can reach a nonequilibrium steady state when properly forced. By following
a ... We evidence a Kovacs-like memory effect in a uniformly driven granular gas. A system of inelastic hard particles, in the low density limit, can reach a nonequilibrium steady state when properly forced. By following a certain protocol for the drive time dependence, we prepare the gas in a state where the granular temperature coincides with its long time value. The temperature subsequently does not remain constant but exhibits a nonmonotonic evolution with either a maximum or a minimum, depending on the dissipation and on the protocol. We present a theoretical analysis of this memory effect at Boltzmann-Fokker-Planck equation level and show that when dissipation exceeds a threshold, the response can be called anomalous. We find excellent agreement between the analytical predictions and direct Monte Carlo simulations. |
Agencias financiadoras | Ministerio de Economía y Competitividad (MINECO). España Ministerio de Educación, Cultura y Deporte (MECD). España |
Identificador del proyecto | FIS2011-24460
PRX12/00362 |
Cita | Trizac, E. y Prados Montaño, A. (2014). Memory effect in uniformly heated granular gases. Physical Review E, 90 (1), 012204-1-012204-12. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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pubPhysRevE.90.012204.pdf | 793.7Kb | [PDF] | Ver/ | |