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Prof. Dr. Pawel Romanczuk

The main research objective of the Romanczuk Group is the development and analysis of individual-based mathematical models of collective behavior. In their research they combine methods from statistical physics, stochastic processes to computational biology, to investigate the following interconnected research questions:

  1. Do schools, flocks & crowds – from cellular aggregates to animal groups (incl. humans) – share common functional features as a collective information processing system?
  2. How does collective behavior emerge from sensory inputs? Here, they focus on the question of how individuals integrate visual social information and use it to coordinate their actions.
  3. How do animal groups perform collective decisions under sensory constraints? Here, the central question is how animal groups are able to perform near-optimal and robust collective decisions despite sensory constraints and highly variable environments.
  4. What is the interplay between the self-organized structure and dynamics of collective systems and their collectively intelligent (or not so intelligent) behavior?
  • Agent-based models
  • Stochastic Differential equations / Fokker-Planck equations
  • Complex networks
  • Numerical simulations und computational analysis of experimental data

Current position

2022 - present Full Professor of Theoretical Biophysics & Theoretical Biology at the Humboldt-Universität zu Berlin (DE)
2019 - present Member and Principal Investigator of the research cluster of excellence, 'Science of Intelligence'

Positions held 

2016 - 2022 Emmy Noether Junior Group Leader at Humboldt Universität zu Berlin
2014 - 2016 DAAD P.R.I.M.E. postdoctoral fellow Princeton University & Humboldt Universität zu Berlin
2014 - 2014 Postdoctoral Researcher at Leibniz Institute für Gewässerökologie und Binnenfischerei, Berlin
2013 - 2014 Postdoctoral Researcher at Physikalisch Technische Bundesanstalt
2011 - 2013  Postdoctoral Researcher at Max Planck Institute for Physics of Complex Systems
2006 - 2010 Manager of the collaborative research center (Sfb) 555 “Complex Nonlinear Processes”

Academic Education

2006 - 2011 Doctoral Degree in Physics at the Humboldt-Universität zu Berlin (DE)
1999 - 2006 Diploma in Physics at the Technische Universität Berlin (DE)
2001 Bachelor in Physics, University of Manchester Institute of Science and Technology (UK)

DFG-funded projects

2019 - present EXC 2002 - 'Science of Intelligence (SCIoI)'
2016 - 2023 Independent Junior Research Group - 'Collective Information Processing - From Individual Sensory Inputs to Collective Motion and Decision Making'

Selected publications

  • Gómez-Nava L, Lange RT, Klamser PP, Lukas J, Arias-Rodriguez L, Bierbach D, Krause J, Sprekeler H, Romanczuk P. Fish shoals resemble a stochastic excitable system driven by environmental perturbations. Nat. Phys. 2023 Feb 6;19:663–669. doi: 10.1038/s41567-022-01916-1.
  • Davidescu MR, Romanczuk P, Gregor T, Couzin ID. Growth produces coordination trade-offs in Trichoplax adhaerens, an animal lacking a central nervous system. Proc Natl Acad Sci U S A. 2023 Mar 14;120(11):e2206163120. doi: 10.1073/pnas.2206163120.
  • Bastien R, Romanczuk P. A model of collective behavior based purely on vision. Sci Adv. 2020 Feb 5;6(6):eaay0792. doi: 10.1126/sciadv.aay0792.
  • Sosna MMG, Twomey CR, Bak-Coleman J, Poel W, Daniels BC, Romanczuk P, Couzin ID. Individual and collective encoding of risk in animal groups. Proc Natl Acad Sci U S A. 2019 Oct 8;116(41):20556-20561. doi: 10.1073/pnas.1905585116.
  • Romanczuk P, Bär M, Ebeling W, Lindner B, Schimansky-Geier L. Active Brownian particles: From individual to collective stochastic dynamics. Eur Phys J Spec Top. 2012 Mar 30;202:1–162. doi: 10.1140/epjst/e2012-01529-y.