“The Optical Quantum Clock uses an ytterbium ion as its reference and our new system builds closely on our previous ...

The next generation of atomic clocks "ticks" with the frequency of a laser. This is about 100,000 times faster than the microwave frequencies of the cesium clocks which are generating the second ...

At the heart of this change is a new kind of atomic clock that uses light instead of microwaves. This shift means timekeeping could become 1,000 times more accurate than today's standards.

Every clock in your house probably tells a slightly different time. Now picture those clocks as the most precise instruments humanity has ever built, so accurate that they wouldn't lose or gain a ...

By comparing optical clocks in six different countries, researchers have taken a major step toward establishing a new global ...

Scientists have taken a major step toward the ambitious global goal of “redefining the second” by the end of this decade. A ...

And that is not all: the team also succeeded in directly comparing the ultraviolet frequency to the optical frequency employed in one of today’s best atomic clocks made from strontium-87. This last ...

This first atomic clock, however, couldn’t match the precision of the best quartz clocks of the time, and ammonia was abandoned when it became clear that cesium clocks would produce better results.

Picture a clock ticking so steadily that it doesn’t lose a second, even after running for 1 billion years. Scientists are now closer than ever to realizing that level of timekeeping precision ...

At the heart of this change is a new kind of atomic clock that uses light instead of microwaves. This shift means timekeeping could become 1,000 times more accurate than today's standards.

Optical atomic clock achieves record accuracy redefining the second. 21 Jan 2025. Germany’s PTB develops clock that “ticks” at laser frequency 100,000x faster than microwave cesium clocks. ... an ...