Science

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

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 19/10/2026, 17:25:25 UTC.

Briefings

Korea Research Institute of Standards and Science (KRISS) remeasured the strontium atom's transition frequency for the first time in 88 years, reducing measurement uncertainty by over 50 times. Published in Metrologia, this achievement provides an accurate reference value essential for controlling and miniaturizing quantum devices like atomic clocks and neutral-atom quantum computers.

Key points

• KRISS remeasured the strontium atom's transition frequency for the first time in 88 years since 1938 using a photonic grating chip.
• The new absolute frequency value reduces measurement uncertainty by more than 50 times compared to previous measurements.

Context

This work by KRISS provides an accurate reference value for next-generation quantum technologies, contributing to the precise control and miniaturization of quantum devices including atomic clocks and neutral-atom quantum computers.

Limitations

The evidence is a single article from 2026 with no additional background context provided. The specific date of the 88-year measurement cycle is not explicitly defined beyond the 1938 baseline. The 50x uncertainty reduction is a reported figure without the raw data or intermediate values supporting it.

Generated by Bittrees-hosted qwen35-2b sha256:aaf42c8b7c3c on 19/10/2026, 17:26:41 UTC. Based on publisher-provided feed evidence; may not cover the full original article. Check the source for details.

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