Thermodynamic Theory of Weakly Excited Granular Materials
arXiv:cond-mat/9703075 · doi:10.1103/PhysRevLett.78.2764
Abstract
We present a thermodynamic theory of weakly excited two-dimensional granular systems from the view point of elementary excitations of spinless Fermion systems. We introduce a global temperature T that is associated with the acceleration amplitude Γin a vibrating bed. We show that the configurational statistics of weakly excited granular materials in a vibrating bed obey the Fermi statistics.
12 pages, 1 figure, To Appear in Phys. Rev. Lett. April, 1997
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