Martin Luther University Halle-Wittenberg

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In the working group problems of equilibrium and nonequilibrium statistical physics as well as questions concerning the theory of condensed matter are investigated theoretically by analytical or computer- based methods.

Main focus

  • Transport and reaction processes in ordered and disordered systems
  • Influence of feedback and memory effects
  • Phase transitions and fluctuations in equilibrium or nonequilibrium
  • Dynamical systems with constraints
  • Ferroelectric, multiferroic and magnetic systems based on microscopic and mesoscopic models
  • Ferroelectric layer systems and nanoparticles
  • Mathematical biology: growth and population models
  • Polymers and social networks
  • Polymeric electrolytes
  • Transport processes in electronically correlated systems


  • Stochastic differential equations (SDE), Fokker- Planck equations (FPE)
  • Master equation, Fock space representation
  • Renormalization group theory (RG theory)
  • Green's function method,  equation of motion and  pertubation theory
  • Path integral representation
  • Theory of ferroelectric and magnetic systems
  • Monte- Carlo- simulations