Intersecting Laser Beam Testing (IMAGE) Rice University Caption Using ultracold lithium atoms confined by intersecting laser beams, physicists from Rice University and the University of Geneva confirmed a 1963 prediction that the charge wave from an excited electron moves faster in a one-dimensional electron gas as interaction strength between the electrons increases. Credit Jeff Fitlow/Rice University Usage Restrictions For news reporting purposes only. 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.