Highlights of work in the AEI Group

The AEI Network node has many groups participating in the EU Network project. Scientific staff directly involved include Peter Diener, and Ed Seidel, and administrative staff include the AEI Scientific Coordinator Elke Mueller and EU Project Secretary Elke Geisler. Advisory Board member Bernard Schutz is an AEI Director, and another member, Sathyaprakash, is now visiting AEI for the 2001-2002 academic year. Many other members of the AEI numerical relativity group are involved in work related to the project: senior staff Miguel Alcubierre, Gabrielle Allen, and Bernd Bruegmann, postdocs Manuela Campanelli, Scott Hawley, Carlos Lousto, and Denis Pollney. John Baker recently left for a postdoc at NASA. New postdocs joining the group this fall include Francisco Guzman from Mexico, a scalar field expert, Keisuke Taniguchi recently from Meudon, an expert in binary NS initial data, and Ian Hawke from Cambridge, an expert in hydrodynamic methods and scalar fields. Research Programmer David Rideout, who just got his PhD in relativity, just joined the Cactus group and will be especially involved in helping EU Network folks on Cactus issues. PhD students: Tom Goodale continues work on methods for hyperbolic systems in relativity, Michael Koppitz works on black hole initial data and evolutions, Werner Benger and Ralf Kaehler continue work on advanced visualization techniques for relativity, and Ryoji Takahashi just left to join Novikov's group in Copenhagen. A new student, Frank Hermann, has joined to pick up on black hole evolutions.

In what follows, we focus on the work on Einstein equation evolutions, carried out by the AEI group, that are most relevant for the Network. In addition to what is described below, we have had a significant program in computational science, developing the Cactus Framework, that will be of great use to the Network. We have also worked on self-gravitating scalar fields, which will be reported elsewhere, and also on GR hydrodynamics, that has been covered in the SISSA and Thessaloniki reports.