World's first thorium-229 nuclear clock shows potential for ultra-precise timekeeping and fundamental physics tests.

By using a rare thorium nucleus as a timekeeper, physicists have demonstrated the first working nuclear clock, a device that could lead to even more precise clocks and new ways to search for dark ...

Two teams of physicists have made the world’s first nuclear clocks. These radical new devices use fluctuations in the energy ...

For the first time, an international team of physicists has successfully harnessed a rare orbital transition in atoms of ytterbium to create a new type of atomic clock that is both highly precise and ...

Nuclear effect The deformed shape of the ytterbium-173 nucleus (right) makes it possible to excite the clock transition with a relatively low-power laser. The same transition is forbidden (left) if ...

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In 2024, TU Wien presented the world's first nuclear clock. Now it has been demonstrated that the technology can also be used to investigate unresolved questions in fundamental physics. Thorium atomic ...

An ultra-precise laser synchronized to one of the world’s most precise clocks has been used to excite rapid nuclear oscillations — promising a timekeeper that could help to tackle fundamental ...

A transportable ytterbium optical lattice clock has been commercially shipped, rapidly recommissioned, and tested against reference systems at the U.S. Naval Observatory, according to a recent arXiv ...