Scientists Build World's Most Accurate Atomic Clock Using Lutetium
The device posted a systematic uncertainty of 1.2 x 10-19 after researchers compared two identical clocks to verify its accuracy.
- On Wednesday, researchers at the National University of Singapore unveiled a new atomic clock using lutetium, a device four times more accurate than the previous best clock.
- Physicist Murray Barrett led the team during a decade-long project to harness lutetium, which remains remarkably stable despite fluctuations in temperature and magnetic fields.
- To verify precision, the team compared two independently built lutetium clocks, achieving matching results to the 19th digit with a systematic uncertainty of just 1.2 x 10-19.
- Metrologists may eventually use this technology to redefine the second, while scientists gain tools to map Earth's gravitational variations and test Einstein's theories of relativity.
- While the current setup requires two clocks sitting side-by-side, the team hopes this breakthrough fosters wider appreciation for lutetium's advantages in future fundamental physics experiments.
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Humanity has just measured time more accurately than ever before. Therefore, it can become a tool for studying gravity, dark matter, and the limits of physics.
Researchers develop highly accurate atomic clock using lutetium - The Tribune
Researchers have created an atomic clock, built from the element lutetium, which they say can measure a trillionth of a second accurately and is the most stable one across environments, hardly feeling changes in temperature or magnetic field. Atomic clocks keep time with reference to an atomic transition—when one of an atom’s electrons swaps energy […]
New Lutetium Atomic Clock Achieves Unprecedented Stability
Researchers have developed a new atomic clock using the element lutetium, which they claim is the most stable and accurate in the world. This clock can measure a trillionth of a second precisely and is highly resilient to environmental changes like temperature and magnetic fields, making it a significant advancement in timekeeping technology.
It quadruples the accuracy of the previous model, thanks to a new technology.They assure that it is so accurate that it would take 260 million years to lose a second.It was presented by the National University of Singapore after a decade of development.
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