Peter Grassberger
Peter Grassberger (born May 17, 1940 in Vienna ) is an Austrian physicist who deals with chaos theory and particle physics.
Life
Grassberger (grandson of the hygienist Roland Graßberger ) attended school in Steyr and from 1959 studied physics and mathematics at the University of Vienna , where he received his doctorate in 1965 under Walter Thirring and Herbert Pietschmann (with a topic from theoretical elementary particle physics). As a post-doctoral student, he was at the University of Bonn from 1965 to 1968 . From 1969 to 1971 he was a professor at the University of Kabul (where he dealt with geophysics of sand dunes, among other things) and in 1971 he became an assistant at the University of Bonn, where he completed his habilitation in 1973. From 1973 to 1975 he was at CERNand 1975 to 1977 visiting professor (Maitre de Conferences) at the University of Nice. From 1977 to 2005 he was a professor at the Bergische Universität Wuppertal . From 1996 to 2005 he was on leave in Wuppertal and was director of the research group for complex systems at the John von Neumann Institute of the Jülich Research Center . From 2006 to 2008 he was a visiting research professor at the University of Calgary .
He was a visiting scientist at SLAC , Los Alamos National Laboratory , the James Franck Institute of the University of Chicago, the University of Warwick , the Weizmann Institute , the Niels Bohr Institute in Copenhagen, the University of Rome, the Korean Institute for Advanced Study in Seoul, the Perimeter Institute , Stellenbosch University, Utrecht University (Kramers Professor 2005), Florida State University and the Institute for Theoretical Physics of the University of California, Santa Barbara .
Grassberger initially dealt with theoretical particle physics, for example the exact treatment of three-body scattering and scattering on bound states (with Werner Sandhas in Bonn, Alt-Grassberger-Sandhas equations). He also found connections between the Reggeon Field Theory and stochastic systems, which made him switch to statistical physics.
Together with Itamar Procaccia , he introduced the correlation dimension into chaos theory in 1983 and an algorithm named after him and Procaccia for its calculation. The correlation dimension is used to estimate fractal dimensions and thus to characterize strange attractors . In 2017, the two theorists received the first-ever Statistical and Nonlinear Physics Prize of the European Physical Society .
Among other things, he deals with reaction-diffusion systems , the Ising model , cellular automata , fractals , self-organized criticality and percolation .
Fonts
- with Procaccia Measuring the Strangeness of Strange Attractors , Physica D, Volume 9, 1983, pp. 189-208
- with Procaccia Characterization of Strange Attractors , Phys. Rev. Lett., Vol. 50, 1983, pp. 346-349
Web links
Individual evidence
- ^ Grassberger, Peter - Author profile . INSPIRE-HEP . Retrieved July 18, 2019.
- ^ Grassberger Grassberger-Procaccia Algorithm , Scholarpedia
| personal data | |
|---|---|
| SURNAME | Grassberger, Peter |
| BRIEF DESCRIPTION | Austrian physicist |
| DATE OF BIRTH | May 17, 1940 |
| PLACE OF BIRTH | Vienna |