J. Phys. I France 7 (1997) 1535-1540
Logarithmic Compaction in a 3D Model for Granular MediaMario Nicodemi
PMMH, ESPCI, 10 rue Vauquelin, 75231 Paris Cedex 05, France Dipartimento di Scienze Fisiche, Universita di Napoli "Federico II", INFM and INFN, Sezione di Napoli, Mostra d'Oltremare, Pad. 19, 80125 Napoli, Italy
(Received 3 June 1997, revised 3 July 1997, accepted 25 August 1997)
We discover inverse logarithmic density compaction in a three-dimensional frustrated lattice gas subject to gravity and vibrations. The general properties of compaction are in excellent agreement with some recent experimental results with granular media and Monte Carlo simulation in two-dimensional systems.
© Les Editions de Physique 1997