Institut für Theoretische Physik, Universität Münster, Wilhelm-Klemm-Strasse 9, 48149 Münster, Germany
Faculty of Mechanical Engineering, Department of Precision and Microsystems Engineering, Delft University of Technology, 2628 CD Delft, The Netherlands
Institut für Theoretische Physik, Universität Münster, Wilhelm-Klemm-Strasse 9, 48149 Münster, Germany and Center of Nonlinear Science (CeNoS), Universität Münster, Corrensstrasse 2, 48149 Münster, Germany
