Superstatistics

Superstatistics is a branch of statistical mechanics or statistical physics devoted to the study of non-linear and non-equilibrium systems. It is characterized by using the superposition of multiple differing statistical models to achieve the desired non-linearity. In terms of ordinary statisical ideas, this is equivalent to compounding the distributions of random variables and it may be considered a simple case of a doubly stochastic model.

References

* "Superstatistics", Beck C.1; Cohen E.G.D., "Physica A", Volume 322, 1 May 2003, pp. 267-275(9)

* [http://arxiv.org/abs/physics/0502153 Is ‘superstatistics’ really ‘super’?]