A thorium-229 optical nuclear clock with feedback loop

T1Covered by 1 source · first reported by Nature / Science / Nature Biotechnology at 07 Oct, 00:00 UTC

Nature, Published online: 07 October 2026; doi:10.1038/s41586-026-11084-4 A thorium-229 nuclear clock is realized by stabilizing a continuous-wave laser to the 148-nm nuclear excitation with a rapid feedback loop based on absorption spectroscopy.

Sources

• T1A thorium-229 optical nuclear clock with feedback loopNature / Science / Nature Biotechnology07 Oct, 00:00