Complex Systems Group, Chemical Biology Laboratory , NICPB, Tallinn

Welcome to the page of ComplexSimplex , the complex systems group at the Chemical Biology Laboratory of the National Institute of Chemical Physics and Biophysics , Tallinn.
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Workshops and meetings

In the News

  • Dr. Els Heinsalu has spoken on the Estonian national TV channel about Complex Systems and our research on econophysics and languages! The interview was hosted by the scientific program "Curiosity Excellence Center" ("Uudishimu tippkeskus") and is available online!

  • June 5th, 2022. Dr. Els Heinsalu's interview at the Estonian national radio ( on movement ecology, plant and animal dispersal, and complex systems! The interview is online!

Position Openings

  • Position opening in our complex systems group based in Tallinn, Estonia, in the field of language dynamics, within the project "The Role of Learning in Language Competition" supported by the Estonian Research Council through grant PRG1059.
    The position can be for 1 to 3 years. The starting date is negotiable, with the possibility to start immediately.
    The aim of the project is to develop new language dynamics models that explore the social and the cognitive dimensions of language directly connected to learning processes. The candidate will work with the PI of the project, Dr. Marco Patriarca, Dr. Els Heinsalu, and the other collaborators of the complex systems group, who have been actively working on various problems of language dynamics in the last years.
    The applicant should hold a PhD in physics or mathematics and a strong interest in complex systems, in particular language dynamics. In order to apply for the position please send a CV with publication list and a recommendation letter (or have the letter directly sent) to:

    • Els Heinsalu (els DOT heinsalu AT kbfi DOT ee)

    • Marco Patriarca (marco DOT patriarca AT kbfi DOT ee)

In case of any questions feel free to write to the contacts above.

Recent Presentations

  • Estonian Physics Days: Dr. Els Heinsalu has spoken about our research work in language dynamics in the talk "Languages through the Lens of Complex Systems Theory"

  • CCS2022 - the Conference of Complex Systems, October 17-21, 2022, Palma de Mallorca:

    • Talk: Els Heinsalu and Marco Patriarca. Cultural and geographical barriers in language competition

    • Talk: Jens-Kristjan Liivand, Stefano Scialla, Marco Patriarca, Els Heinsalu. The effect of memory and heterogeneity in an agent-based language competition model.

    • Talk: Stefano Scialla, Marco Patriarca, Els Heinsalu. Hubs, noise, and diversity in a FitzHugh-Nagumo oscillator network

    • Poster: Clement Zankoc, Els Heinsalu, Marco Patriarca. Agent-based model of language formation, propagation and clusterization

    • Poster: Marius Yamakou, Els Heinsalu, Marco Patriarca, Stefano Scialla. Diversity-induced damping in complex neural networks

    • Poster: Jens-Kristjan Liivand, Stefano Scialla, Marco Patriarca, Els Heinsalu. The effect of memory and heterogeneity in an agent-based language competition model

Recent publications

Stefano Scialla, Marco Patriarca, Els Heinsalu.

Europhysics Letters 137, 51001 (2022),

doi: 10.1209/0295-5075/ac5cdb arXiv:2203.12506