Properties of Non-Equilibrium States: Dense Colloidal Suspensions under Steady Shearing

ii Acknowledgments A lot of people contributed to this thesis in different ways. First, I would like to thank Prof. Matthias Fuchs for the opportunity to work under his supervision. I profitted enormously from his instructions and our discussions. He was always available when I needed help. I also thank him for being very exacting concerning my results, which forced me to optimize my arguments and helped me to separate helpful from meaningless ideas. I am grateful to Prof. Jörg Baschnagel, the second referee of the thesis, for various discussions. He made it possible for me to spend two inspiring months in his group at the Institut Charles Sadron in Strasbourg for which I thank him. I acknowledge financial support from the " Deutsche Forschungsgemeinschaft " in the International Research Training Group (IRTG) " Soft Condensed Matter ". The IRTG gave me the opportunity to participate in various seminars and workshops. I would also like to thank the " Studienstiftung des deutschen Volkes " for its support and the possibility to participate in several seminars for doctoral students. I acknowledge the discussions with Dr. Joseph M. Brader on all kinds of topics as well as the competitions on the badminton court. It was simply good to hear his opinion about things. I also thank Dr. Thomas Voigtmann. For me, he is the " MCT-encyclopedia " on two legs and he immediately understands my points in our discussions. Special thanks go to all my colleagues in the group who enriched the daily life. Dr. Tho-mas Voigtmann, Dr. Joseph M. Brader and Christof Walz are acknowledged for a critical reading of the manuscript. I thank Fabian Weyßer for discussions within our beginning theory-simulation collaboration. I also acknowledge discussions with Prof. helped me find my way through the FDT-violation jungle. The members of the Baschnagel-group in Strasbourg made my stay there a great pleasure for which I thank especially the young generation. I also acknowledge the inspiring discussions with Dr. Joachim Wittmer. My parents, Dr. Ekkehard und Gisela Krüger, supported me in uncountable many ways for which I want to thank them. Final and special thanks go to Anja Ging for her support, especially during the last weeks. She is also acknowledged for a critical reading of the manuscript and comments from the literature-studies point of view.