Science & Technology
Scientists Report World's First Working Nuclear Clocks
Scientists from Europe and China have reported the development of the world's first working nuclear clocks using thorium-229 isotope's nucleus. Traditional atomic clocks, the gold standard for timekeeping, rely on electronic transitions disturbed by electromagnetic fields. In contrast, nuclear clocks utilize the extremely low transition energy of the thorium-229 nucleus triggered by ultraviolet lasers. These advanced prototypes promise unprecedented precision, potentially surpassing atomic clocks and aiding in fundamental physics research, such as detecting dark matter.
Key Points
- Researchers have developed the world's first working nuclear clocks using thorium-229 nuclei.
- Unlike atomic clocks based on electron transitions, nuclear clocks use the nucleus of an atom triggered by ultraviolet lasers.
- Nuclear clocks offer significantly higher precision and resistance to external magnetic and electric fields.
- The technology could help scientists test fundamental physical constants and search for dark matter.
Exam Facts
- The breakthrough involves utilizing the thorium-229 isotope's nucleus.
- Traditional atomic clocks use cesium or ytterbium atoms for timekeeping.
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