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Kovacs-Like Memory Effect in Driven Granular Gases

Opened Access Kovacs-Like Memory Effect in Driven Granular Gases

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Autor: Prados Montaño, Antonio
Trizac, E.
Departamento: Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear
Fecha: 2014-05-14
Publicado en: Physical Review Letters, 112 (19), 198001-1-198001-5.
Tipo de documento: Artículo
Resumen: 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.
Cita: Prados Montaño, A. y Trizac, E. (2014). Kovacs-Like Memory Effect in Driven Granular Gases. Physical Review Letters, 112 (19), 198001-1-198001-5.
Tamaño: 338.6Kb
Formato: PDF

URI: http://hdl.handle.net/11441/62494

DOI: 10.1103/PhysRevLett.112.198001

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