Article
Memory effect in uniformly heated granular gases
Author/s | Trizac, Emmanuel
Prados Montaño, Antonio ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Publication Date | 2014 |
Deposit Date | 2020-05-13 |
Published in |
|
Abstract | 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. |
Funding agencies | Ministerio de Economía y Competitividad (MINECO). España Ministerio de Educación, Cultura y Deporte (MECD). España |
Project ID. | FIS2011-24460
![]() PRX12/00362 ![]() |
Citation | Trizac, E. y Prados Montaño, A. (2014). Memory effect in uniformly heated granular gases. Physical Review E, 90 (1), 012204-1-012204-12. |
Files | Size | Format | View | Description |
---|---|---|---|---|
pubPhysRevE.90.012204.pdf | 793.7Kb | ![]() | View/ | |