Rainer Blatt and his Team (IMAGE) University of Innsbruck Caption Rainer Blatt, Gerhard Kirchmair, Rene Gerritsma, Florian Zähringer and Christian Roos used a calcium ion to simulate a relativistic quantum particle, demonstrating a phenomenon that has not been directly observable so far: the Zitterbewegung. Credit IQOQI Usage Restrictions None 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.