Heavy Electron Video (video) Princeton University Loading video... Caption This video displays heavy electrons at different energies and shows their standing wave patterns (like water in a pond) around individual atomic defects placed intentionally in a compound. The patterns in these images allowed the Princeton scientists to understand the formation of heavy electron waves and to identify a hard-to-measure quantum entanglement process that controls their mass. Credit The Yazdani Group. Usage Restrictions None 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.