Ultracold Laboratory (image) University of Chicago Share Print E-Mail Caption University of Chicago scientists can create an exotic, particle-like excitation called a roton in superfluids with the tabletop apparatus pictured here. Posing from left are graduate students Li-Chung Ha and Logan Clark, and physics Professor Cheng Chin. Credit Rob Kozloff, University of Chicago Usage Restrictions News organizations may use this image in connection with reports about the research of Cheng Chin and his associates. Share Print E-Mail 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.