Excitation of a Single Ion in a Trap (IMAGE) Physikalisch-Technische Bundesanstalt (PTB) Caption Stylized representation of the excitation of a single ion in a trap by means of a "hyper" Ramsey pulse sequence. Credit Physikalisch-Technische Bundesanstalt 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.