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Peter Grassberger
Peter Grassberger is a professor well known for his work in statistical and particle physics. He is most famous for his contributions to chaos theory, where he introduced the idea of correlation dimension, a means of measuring a type of fractal dimension of the strange attractor.
His early work focused on particle phenomenology, in particular on the formulation of formally exact equations for three-body scattering and bound state scattering (Alt-Grassberger-Sandhas equation).
While working at CERN, he realized that reggeon field theory can be viewed as a contact process in the same universality class as directed percolation. After making this discovery, Grassberger turned his attention to the studies of statistical physics, dynamical systems, sequential sampling algorithms, and complex systems. His publications span a variety of topics including reaction-diffusion systems, cellular automata, fractals, Ising model, Griffiths phases, self-organized criticality, and percolation.
Currently he is a visiting (iCORE ) professor with the (Complexity Science Group ), University of Calgary, and maintains a joint appointment with the (Institute for Biocomplexity & Informatics ). Grassberger has also held positions at CERN, Stanford Linear Accelerator Center, Weizmann Institute, Los Alamos National Lab, Niels Bohr Institute, (Institute of Scientific Interchange ), KIAS, and Perimeter Institute. Before coming to Calgary, Grassberger was the head of the (Complex Systems Research Group ) at the John-von-Neumann Institute, Forschungszentrum Jülich.
==See also==
* Correlation dimension
* Self-organized criticality
* Complex network
* Percolation
* Epidemic models on lattices
* Mutual information
* Forecasting complexity
* Kolmogorov entropy
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