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Possible test of the thermodynamic approach to granular media | | David S Dean
; Alexandre Lefèvre
; | | Date: |
16 May 2003 | | Journal: | Phys Rev Lett, 90 (19), 198301 | | Abstract: | We study the steady state distribution of the energy of the Sherrington-Kirkpatrick model driven by a tapping mechanism which mimics the mechanically driven dynamics of granular media. The dynamics consists of two phases: a zero temperature relaxation phase which leads the system to a metastable state, then a tapping which excites the system thus reactivating the relaxational dynamics. Numerically, we investigate whether the distribution of the energies of the blocked states obtained agrees with a simple canonical form of the Edwards measure. It is found that this canonical measure is in good agreement with the dynamically measured energy distribution. A possible experimental test of the Edwards measure based on the study here is proposed. | | Source: | PubMed, pmid12785988 | | Services: | Forum | Review | Favorites | |
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