# Scientists redetermine a key strontium frequency with 50 times better precision for quantum technologies

- Source: Phys.org
- Published: 2026-10-19T17:20:18+00:00
- Category: Science
- Original: https://phys.org/news/2026-10-scientists-redetermine-key-strontium-frequency.html
- Canonical: https://groundlevelnews.com/story/scientists-redetermine-a-key-strontium-frequency-with-50-times-better--64adb8/

The Korea Research Institute of Standards and Science (KRISS) has remeasured a key transition frequency of the strontium (Sr) atom for the first time in 88 years, since 1938, using a photonic grating chip. It has established a new absolute frequency value with a measurement uncertainty reduced by more than 50 times. By providing an accurate reference value for next-generation quantum technologies,

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