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International Symposium on Non-Additive Entropies:

A tribute to
Constantino Tsallis

October 19 · 20 · 21 · 2026

Rio de Janeiro - RJ - Brazil

he International Symposium on Non-Additive Entropies: Foundations, Frontiers, and Applications celebrates the legacy and contributions of non-extensive statistical mechanics, which began in 1988 with the proposal of Tsallis entropy. Honoring physicist Constantino Tsallis, the event brings together leading global figures in Rio de Janeiro for high-level discussions on the future directions and frontiers of this field.

The program covers everything from axiomatic foundations and experimental validation in physics (such as plasmas, astrophysics, and condensed matter) to innovative applications in systems biology, epidemiology, precision medicine, neuroscience, economics, and data science.

The symposium is structured around three thematic axes:


Through a dynamic format that fosters constructive debate among critics and theorists, the event features researchers from globally prestigious institutions—such as Fiocruz, CBPF, Harvard Medical School, ETH Zurich, Queen Mary University of London, the Medical University of Vienna, Universidad Carlos III de Madrid, and RIKEN.

More than just an academic gathering, the symposium reinforces Brazil's role as a hub of international excellence in research on complex systems applied to health, science, and innovation.

Organizational Structure

Proponent:

Cecilia Hedin Pereira - Vice-Presidency for Research and Biological Collections - Fiocruz

Honorary President:

Constantino Tsallis - Centro Brasileiro de Pesquisas Físicas

Comitê Científico e Organizador:

Bruno Duarte Gomes - Faculty of Biotechnology, Institute of Biological Sciences, and Laboratory of Simulation and Computational Biology, Federal University of Pará

Cecilia Hedin Pereira -Vice-Presidency for Research and Biological Collections - Fiocruz

Claudio Tadeu Ribeiro - Oswaldo Cruz Institute - Fiocruz

Constantino Tsallis - Brazilian Center for Research in Physics

Dimitri Abramov - Instituto Fernandes Figueira - Fiocruz

Evaldo M.F. Curado - Brazilian Center for Research in Physics

Fabricio A. B. da Silva - Scientific Computing Program - Fiocruz

Luciana Sarmento Garbayo - National Cardiovascular Genomics Network – National Institute of Cardiology

Location and period

Dates: October 19, 20, and 21, 2026

Location

October 19 and 20: Maria Deane Auditorium (Leônidas Deane Pavilion) - Av. Brasil, 4365 - Manguinhos – Rio de Janeiro, RJ.

October 21: Brazilian Center for Physics Research – 150 Dr. Xavier Sigaud Street, Botafogo – Rio de Janeiro, RJ.