Matthias Bartelmann How Can the Statistical Properties of Cosmic Structures Be Calculated with Simple Physical Laws?
Matthias Bartelmann is Full Professor of Theoretical Astrophysics at Heidelberg University. He is also Spokesman of the Commission for Research and Strategy at the same institution. From 2008 to 2016, he was board member of the German Physical Society. His current research interests include galaxy clusters, cosmology, and gravitational lenses. Both in 2008 and 2016, he was awarded the Teaching Prize of the Department of Physics and Astronomy of Heidelberg University.
Area of Research
Theoretical Astrophysics
since 2003
Full Professor
Heidelberg University (Ruprecht-Karls-Universität Heidelberg)
Institute of Theoretical Astrophysics
since 2012
Spokesman
Heidelberg University (Ruprecht-Karls-Universität Heidelberg)
Commission for Research and Strategy
2008-2012
Vice-Dean
Heidelberg University (Ruprecht-Karls-Universität Heidelberg)
Department of Physics and Astronomy
2006-2008
Dean
Heidelberg University (Ruprecht-Karls-Universität Heidelberg)
Department of Physics and Astronomy
2000
Lecturer
Ludwig Maximilian University Munich (Ludwig-Maximilians-Universität München)
1998-2003
Scientific Project Leader
Planck Satellite Project
1995-2003
Senior Researcher
Max Planck Society
Max Planck Institute for Astrophysics
1998
Habilitation
Ludwig Maximilian University Munich (Ludwig-Maximilians-Universität München)
1994-1995
Post-Doc
Harvard University
Harvard-Smithsonian Center for Astrophysics
1992-1994
Post-Doc
Max Planck Society
Max Planck Institute for Astrophysics
1992
PhD
Ludwig Maximilian University Munich (Ludwig-Maximilians-Universität München)
1985-1990
Physics Studies
Ludwig Maximilian University Munich (Ludwig-Maximilians-Universität München)
- German Physical Society
Prizes
- Teaching Prize of the Department for Physics and Astronomy, Heidelberg University (2016)
- Teaching Prize of the Department for Physics and Astronomy, Heidelberg University (2008)
- Ludwig Biermann Prize of the German Astronomical Society (1996)
Fellowships
- Heisenberg Fellowship of the German Science Foundation (1998)
So far, the understanding we have of cosmic structures comes from numerical simulations. As MATTHIAS BARTELMANN explains in this video, his research group has developed a different method to calculate the statistical properties of cosmic structures in order to better understand why they evolve in the way they do. The researchers employed concepts of statistical field theory and could therefore use much simpler dynamical equations. They applied this new approach to describe the power spectrum of cosmic structures, i.e. the degree to which cosmic matter clusters. They thus obtained the same results as the numerical simulations, but in a much simpler way that saves considerable amounts of computation time, reducing it from months to a matter of seventy seconds. This will allow researchers to gain a much better understanding of the formation of cosmic structures in a feasible amount of time.
LT Video Publication DOI: https://doi.org/10.21036/LTPUB10453
A Microscopic, Non-equilibrium, Statistical Field Theory for Cosmic Structure Formation
- Matthias Bartelmann, Felix Fabis, Daniel Berg, Elena Kozlikin, Robert Lilow and Celia Viermann
- New Journal of Physics
- Published in 2016
Kinetic Field Theory: Effects of Momentum Correlations on the Cosmic Density-fluctuation Power Spectrum
- Matthias Bartelmann, Felix Fabis, Elena Kozlikin, Robert Lilow, Johannes Dombrowski and Julius Mildenberger
- New Journal of Physics
- Published in 2016
