Numerical Relativity
Gravity is one of the four fundamental interactions in physics. Einstein's General Theory of Relativity contains Newton's theory of gravity as a classical boundary case and describes gravity as the curvature of spacetime. Experiments have confirmed the General Theory of Relativity with high accuracy, e.g. for the deflection of light rays and time measurements in GPS. It describes black holes, the Big Bang and gravitational waves.
In numerical relativity, Einstein's field equations are solved on the computer.
Numerical solving these 10 coupled, highly nonlinear partial differential equations allows the investigation of
 physical properties of astrophysical systems such as the fusion of black holes or neutron stars
 mathematical properties of spacetimes such as geometry or horizons.
Numerical relativity complements analytical methods and perturbation theory, and allows the calculation of phenomena that cannot be investigated by other methods.
Of particular interest is the calculation of gravitational waves. While the methods of perturbation theory provide the waveforms in the phase of the spiralling in of binary black holes, it is possible in numerical relativity theory to determine waveforms of the fusion phase. These simulated gravitational wave signals are helpful in the detection of gravitational waves.
Solving Einstein's field equations on the computer is a big challenge. It is necessary to cover many different topics.
 Physics is the goal, but also essential to understand and interpret the results of numerical simulations.
 Simulations are performed on highperformance computers so that they can be completed within a reasonable time.
 Mathematics is needed to rewrite Einstein's field equations into a wellfounded initial value problem.
 Numerics provides methods of high accuracy to discretize the Einstein equations and calculate solutions.
 Prof. Dr. Bernd Brügmann

Short CV
 1987. M.S. in Mathematics, Syracuse University, USA
 1993. Ph.D. in Physis, Syracuse University, USA
 1993  1995. MPI for Physics, München
 1995  2002. MPI for Gravitational physics, Potsdam
 2002  2004. Associate Professor, Penn State University, USA
 Since 2004 Professor, Professorchip for Gravitational theory, FSU Jena
 Prof. Dr. Sebastiano Bernuzzi

Short CV
 2009 PhD in Theoretischer Physik, Universität Parma, Italy
 20092014 Postdoc at the TPI
 20142015 Senior Postdoc at TAPIR/Caltech
 20142017: Rita Levi Montalcini fellow, Universität Parma, Italy
 2017: Habilitation
 20172018 Associate Professor, Universität Parma, Italy
 20172022 ERCStG fellow
 Since 2018 Professor at the TPI
 Dr. Roxana RoscaMead

Inhalt
 Maximilian Kölsch
 Francesco Fabbri

Short CV
 20142017: M.Sc. Astrophysik und Kosmologie at the Università degli Studi di Trieste (University of Trieste), Thema: General Relativistic Simulations of Binary Neutron Stars Mergers: An Engine for Short Gamma Ray Bursts (at University of Trento)
 Since 2017: Scientific staff member at the TPI
 Sarah Renkhoff

Short CV
 2016  2018: M.Sc. Physics at the TPI Jena, Masterarbeit: "Apparent Horizons in Numerical Spacetimes: A New Apparent Horizon Finder for bamps"
 Since 2018: Scientific staff member at the TPI
 Ondrej Zelenka

Short CV
 20172019: Mgr. Theoretical Physics, Charles University in Prague, thesis: Dynamics of spinning test particles in curved spacetimes
 Since 2019: Scientific staff member at the TPI
 Daniela Cors

Short CV
 20172018: MSc in Physics at University College London, UK. Research project: "Derivation of the Lorentz force law from the EinsteinMaxwell field equations".
 Since 2019: Scientific member of the TPI
 20172018: MSc in Physics at University College London, UK. Research project: "Derivation of the Lorentz force law from the EinsteinMaxwell field equations".
 Florian Atteneder

Short CV
 20172019: M.Sc. Physics at the KarlFranzensUniversität Graz (Österreich). Master thesis: „The rotating mass shell in the general theory of relativity“
 Since 2020: Scientific member of the TPI
 Dr. Niclas Moldenhauer

 Dr. Tim Dittrich

 Dr. Marcus Bugner

 Dr. Hannes Rütter

 Until 2018: Scientific staff member at the TPI, Dissertation
 Afterwards: Postdoc at the MaxPlanckInstitute for Gravitational Physics (AlbertEinsteinInstitute, Potsdam)
 Dr. Reetika Dudi

 Until 2019: Scientific staff member at the TPI
 Afterwards: Postdoc at the MaxPlanckInstitute for Gravitational Physics (AlbertEinsteinInstitute, Potsdam)
 Dr. Vivek Chaurasia

 Until 2020: Scientific staff member at the TPI
 Afterwards: Postdoc at Stockholm University