The world's first nuclear clock
For many years, scientists all around the world have been working towards this goal, now suddenly things are happening very fast: it was only in April that a team led by Prof Thorsten Schumm (TU Wien, Vienna) announced a major success. For the first time, an atomic nucleus had been switched from one state to another using a laser – an effect that can be used for high-precision measurements. Now, just a few weeks later, this thorium transition was successfully applied in practice: TU Wien and JILA/NIST (USA) succeeded in combining a high-precision optical atomic clock with ...









