Singapore scientists build world most accurate atomic clock using lutetium
Researchers at Singapore's Centre for Quantum Technologies published results on September 23 showing their new atomic clock is the most accurate in the world.
New clock beats previous records
The device uses lutetium atoms to measure time with unprecedented precision. Team leader Murray Barrett stated that this instrument outperforms earlier models built from different elements. The team published these findings in the journal Nature.
Method relies on atomic transitions
Atomic clocks function by matching a laser to a specific energy change within an atom. This process creates light oscillations that act like a pendulum to count time intervals. Cesium atoms have served as the global standard since the 1960s.
Potential uses for physics and GPS
More accurate timekeeping could help scientists probe unknown areas of fundamental physics. These tools also offer new ways to monitor gravitational changes across the Earth. The technology is currently competing to redefine the standard second.
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