The Atomic clock with the most precise time ever was created.

It will not delay or advance one second in 15,000 million years more or less the age of the Universe, an almost unimaginable precision, but is now a reality thanks to the changes that have been introduced to a strontium atomic clock.

Scientists at the National Institute of Standards and Technology (NIST) in the US have achieved with their latest amendments  the clock gain in accuracy and stability, according to an article published today in Nature Communications.

The timing is very important in advanced communications technologies -the GPS positioning and many other technologies recalled in a statement NIST.

Furthermore, this high precision clock has other applications beyond telling time, eg for altimeters based on gravity changes and experiments on quantum correlations between atoms.

The clock created by the JILA (a joint institute of NIST and the University of Colorado) is now "three times more accurate than last year, when it set a world record," which allows you to measure tiny changes over time and gravity at slightly different heights.

Einstein had predicted this effect in his theory of relativity, which means, among other things, that the clocks walk faster at higher elevations, recalls the article.

The explanation for all this accurately record because scientists "literally take the temperature" environment of atoms.

For this, two specialized thermometers, NIST calibrated by researchers, are inserted into a vacuum chamber enclosing a strontium atom cloud confined by lasers.

Now "we can measure the gravitational shift when the clock rises only two inches above the surface of the Earth," said Jun Ye's JILA / NIST.

It also found that with this new development are very close to "be useful for the relativistic geodesy" which is the idea of using a network of clocks as if they were gravity sensors for 3D  precision measurements on the Earth shape.

USA physicists revealed the world`s more precise experimental atomic clock.

WorldWide Tech & Science. Francisco De Jesùs.

USA physicists revealed   the world`s more precise experimental atomic clock.

USA physicists revealed   the world`s more precise experimental atomic clock , able to maintain accuracy and range in less than a second in 1800 million years , the age of the Universe .

 This clock runs ytterbium atoms , rare earth element , and regularly laser enabling flapping 10 times higher than the best existing atomic clocks , needed . Compared with a quartz watch , this new device is 10 000 million times more accurate . 

This physical progress has important potential implications not only for accuracy , but in the universal time measurement , but also for example for GPS and a set of sensors from different forces like gravity , magnetic fields and temperature, explains Andrew Ludlow , physical, of the National Institute of Standards and Technology ( NIST , for its acronym in English) .

 " This is an important step in the evolution of the atomic clocks of the next generation development in the world today " , he said. Like all clocks, as atomic kept time based on the duration of one second , which corresponds to a physical phenomenon that plays regularly . While mechanical watches use the motion of a pendulum to keep time , atomic clocks are based on the frequency constant provided the necessary light to vibrate a cesium atom , the current international reference . The latter are based on atomic clocks 10 000 cooled ytterbium atoms slightly above absolute zero ( -273.15 degrees Celsius). These atoms are trapped in optical lattices formed by laser beams. Another laser flaps at least 518 million times per second, creating a transition between two energy levels in the atoms vibration ensures regularity even greater than that of a cesium atom , and could lead to a new international definition second and therefore universal time .

Source: Diario El Comercio