Thermodynamic origin of universal fluctuations and two-power laws
Abstract
Description
We discuss universality of response functions in systems with excited degrees of freedom. We propose a unification of two existing phenomenologies, two-power law decay and deviation from power law due to non-extensivity. A universal curve is derived by maximizing entropy with a non-linear constraint. The same formalism can explain the universal fluctuation curves which have been discovered recently by Bramwell, Holdsworth, and Pinton.
revtex 3 with 3 eps-figures
revtex 3 with 3 eps-figures