4 papers · 1 filter
Reconstruction of the superstatistical temperature distribution from single-particle kinetic energies
Sergio Davis
The framework of superstatistics can be used to describe non-Maxwellian single-particle velocity distributions as mixtures of Maxwellian distributions, where the weight is imposed…
Kappa distributions as asymptotic marginals of exponential family ensembles
Sergio Davis
Recently (Physica A 660 130370, 2025), emergence of superstatistical behavior in driven classical systems has been shown for systems with constant microcanonical heat capacity. As…
Parameter estimation for kappa distributions using the EM algorithm in the superstatistical framework
Leonardo Herrera-Fuenzalida, Sergio Davis
Kappa distributions are widely used in space plasma physics to model velocity distribution functions with heavy tails. Parameter estimation in these distributions is, however, comp…
Fundamental temperature in the superstatistical description of non-equilibrium steady states
Sergio Davis
Among the statistical mechanical frameworks able to describe systems in non-equilibrium steady states such as collisionless plasmas, self-gravitating systems and other complex syst…