
Breakthrough on the Path to Optical Nuclear Clocks: Laser-based Excitation of Thorium-229 in Non-transparent Material
An international team led by UCLA, LMU Munich, and JGU Mainz has achieved a first: laser excitation of the thorium-229 atomic nucleus in a non-transparent material. Published in Nature, this breakthrough overcomes a major hurdle on the path to building an optical nuclear clock, a future timepiece of unmatched precision.













