Random matrices ensembles and the extensivity of the Sq entropy

Physics – Condensed Matter – Statistical Mechanics

Scientific paper

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12 pages, 3 figures

Scientific paper

We consider the joint density distribution of the elements of certain random matrix models which are example of globally correlated and asymptotically scale-invariant distributions. It is shown that in their cases, the nonadditive entropy $S_q$ is extensive only when the limit $q\rightarrow 1$ is taken. On the other hand, when restriction in the occupation of the phase space is imposed extensiveness is obtained for values of the entropic parameter different of one.

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