Macroscopic quantum superposition (IMAGE) University of Innsbruck Caption A nanoscale-sized glass bead evolving in a potential created through electrostatic or magnetic forces enters a macroscopic quantum superposition state. Credit Helene Hainzer Usage Restrictions The picture may be used for editorial purposes only. It is protected by copyright. The use is free of charge if the reference is mentioned. License Original 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.