Alexander K. Hartmann, Ph.D. (1998) from the University of Heidelberg, Diplom (1993) from the University of Duisburg. Since January 2003, Head of the Junior Research group "Complex Ground States of Disordered Systems at the University of Gottingen funded by the Volkswagen Stiftung. 1998-2003, Research Assistant in Prof. Annette Zippelius' group at the University of Gottingen. 2001, Visiting Scientist at the University of California, Santa Cruz and the Ecole Normale Superieure. His research interests are the computer simulations of spin glasses, random field systems and diluted