Wednesday, August 29, 2012

1208.5624 (G. L. Vasconcelos et al.)

Multicanonical distribution and the origin of power laws    [PDF]

G. L. Vasconcelos, D. S. P. Salazar
A multicanonical formalism is applied to the problem of statistical equilibrium in a complex system with a hierarchy of dynamical structures. At the small scales the system is in quasi-equilibrium and follows a Maxwell-Boltzmann distribution with a slowly fluctuating temperature. The probability distribution for the temperature is determined using Bayesian analysis and it is then used to average the Maxwell-Boltzmann distribution. The resulting energy distribution law is written in terms of generalized hypergeometric functions, which display power-law tails.
View original: http://arxiv.org/abs/1208.5624

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