You can reach us via
phone: +49-6221-549-448 phone (secretary): +49-6221-549-431 fax: +49-6221-549-331 e-mail: heermann@tphys.uni-heidelberg.de
We are located in building 19 along the Philosophenweg. The postal adress is:
Heidelberg University
Institute for Theoretical Physics
Philosophenweg 19
D-69120 Heidelberg
Germany