5 papers
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…
Configurational density of states of finite classical systems
Sergio Davis, Boris Maulén
The configurational density of states (CDOS) encodes all the relevant thermodynamic information contained in the interaction potentials for statistical mechanical systems. However,…
Configurational density of states of power-law potentials and the virial theorem in steady states
Sergio Davis
In this brief note, the configurational density of states of a system of particles interacting via power-law pair potentials is computed exactly. The result is consistent with a co…