HD+ molecular ions in ion trap (IMAGE) Heinrich-Heine University Duesseldorf Caption HD+ molecular ions (yellow and red dot pairs) in an ion trap (grey) are irradiated by a laser wave (red). This causes quantum jumps, whereby the vibrational state of the molecular ions changes. (Image: HHU / Soroosh Alighanbari) Credit HHU / Soroosh Alighanbari 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.