Das Forscherteam (von links): (IMAGE) University of Bonn Caption Prof. Dr. Martin Weitz, Dr. Julian Schmitt, Dr. Frank Vewinger, Prof. Dr. Johann Kroha und Göran Hellmann vom Institut für Angewandte Physik der Universität Bonn. Credit © Gregor Hübl/Uni Bonn Usage Restrictions This image may be used together with the press release. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.