Article
Kovacs-Like Memory Effect in Driven Granular Gases
Author/s | Prados Montaño, Antonio
Trizac, E. |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Publication Date | 2014-05-14 |
Deposit Date | 2017-07-13 |
Published in |
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Abstract | While memory effects have been reported for dense enough disordered systems such as glasses, we show here by a combination of analytical and simulation techniques that they are also intrinsic to the dynamics of dilute ... While memory effects have been reported for dense enough disordered systems such as glasses, we show here by a combination of analytical and simulation techniques that they are also intrinsic to the dynamics of dilute granular gases. By means of a certain driving protocol, we prepare the gas in a state where the granular temperature T coincides with its long time limit. However, T does not subsequently remain constant but exhibits a nonmonotonic evolution before reaching its nonequilibrium steady value. The corresponding so-called Kovacs hump displays a normal behavior for weak dissipation (as observed in molecular systems) but is reversed under strong dissipation, where it, thus, becomes anomalous. |
Funding agencies | Ministerio de Economía y Competitividad (MINECO). España |
Project ID. | info:eu-repo/grantAgreement/MINECO/FIS2011-24460 |
Citation | Prados Montaño, A. y Trizac, E. (2014). Kovacs-Like Memory Effect in Driven Granular Gases. Physical Review Letters, 112 (19), 198001-1-198001-5. |
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