Scientists consider puzzle of thorium nuclear clocks

2021-06-10

Scientists hope to build a nuclear clock based on energy level changes in the nuclei of thorium-229, which would be ten times more precise than atomic clocks that are based on atoms' electrons, according to a discussion at the American Physical Society Division of Atomic, Molecular and Optical Physics meeting. The difficulty lies in finding a way to use lasers to trigger the nuclei's change in energy levels.

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