CSH Lecture by Constantino Tsallis: “Nonadditive entropy”

Join us for the lecture by Constantino Tsallis on “Nonadditive entropy: small price to satisfy thermodynamics — Theory and experiments” on Friday, May 26, at 2:15pm at the Hub.

Abstract:

The Galilean composition law of velocities within Newtonian mechanics is additive. But in order to unify mechanics with Maxwell electromagnetism, Einstein adopted the Lorentz space-time transformation as the primary mathematical-physical goal to be satisfied. It resulted in the well known, nonadditive, relativistic composition law of velocities. This surely is a small price to pay in order to unify mechanics and electromagnetism, and explain very many experimental facts. Analogously, there is a plethora of analytical, experimental, observational, and computational evidence (see Bibliography in h]p://tsallis.cat.cbpf.br/biblio.htm) which reveals various kinds of violations of Boltzmann-Gibbs statistical mechanics, including thermodynamics. The adoption of nonadditive entropic functionals which generalize the traditional, additive, Boltzmann-Gibbs entropy enables to satisfy classical thermodynamics: as before, a small price to pay.