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Free volume distributions inside a bidimensional granular medium | | F. da Cruz
; F. Lechenault
; O. Dauchot
; E. Bertin
; | | Date: |
21 Feb 2005 | | Subject: | Soft Condensed Matter; Statistical Mechanics | cond-mat.soft cond-mat.stat-mech | | Abstract: | We investigate experimentally within a two-dimensional cell the distribution of the free volume associated either to single grains or to clusters of grains. Our main result is that the logarithm of the probability to find a free volume per grain v_N^f in a cluster of N grains scales as N^alpha g(v_N^f), with alpha = 0.75. We interpret this non extensive scaling factor N^alpha as an evidence for the onset of long range correlations between the free volumes of individual grains. We also discuss the possible relation between g(v_N^f) and Edwards entropy. | | Source: | arXiv, cond-mat/0502504 | | Services: | Forum | Review | PDF | Favorites | |
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