Physicists have created the most accurate atomic clock in the world

Physicists from the United States and Singapore have created the most accurate at the moment atomic clocks worldwide. The results of their own research scientists published in the journal Nature Communications, and briefly with them can be found on the website Livescience.

A new watch can be mistaken for 1 second for 15 billion years. For comparison, the age of the Universe is 13.8 billion years. Created device is able to work at room temperatures and does not require cryogenic freezing, unlike its previous versions.

Comparing with the previous record holder, the accuracy of the new hours has increased in 3 times. Their work is based on quantum transitions of atoms of strontium between various energy levels.

In the new watch researchers reduced the number of factors that could lead to measurement error. In 1-x, physics prevented the fixture from the activities of external electromagnetic radiation, surrounding his special radiation protection. In-2, with platinum thermometers they spent an additional account of the influence of thermal fluctuations on the clock.

With new fixtures it is possible to figure out the time dilation is the result predicted by the joint theory of relativity, will be visible already at the differences conditionally hours the Earth's surface to 2 cm (the distance from a massive body time goes faster). We are being told researchers, this allows you to use a new watch for further gravitational map of the Earth.

sections: Society, World News