Detecting q-Gaussian distributions and the normalization effect

Details Detecting q-Gaussian distributions and the normalization effect Detecting q-Gaussian distributions and the normalization effect

2007-08-22

arxiv.org/abs/0708.2973v1

Physics

Condensed Matter

Statistical Mechanics

2 figures, 2 tables

Scientific paper

We show that whenever data are gathered using a device that performs a normalization-preprocessing, the ensuing normalized input, as recorded by the measurement device, will always be q-Gaussian distributed if the incoming data exhibit elliptical symmetry. As a consequence, great care should be exercised when detecting q-Gaussians. As an example, Gaussian data will appear, after normalization, in the guise of q-Gaussian records. Moreover, we show that the value of the resulting parameter q can be deduced from the normalization technique that characterizes the device.

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