For example,
Most precise atomic clock ever new: For example,
Most precise atomic clock ever:
As explained previously. Meanwhile, to design it, NIST researchers bet on an aluminum ion, extremely stable, but difficult to handle. Similarly, This atom cannot be cooled. For example, measured directly by laser, because its electronic transitions are inaccessible to wavelengths used in the laboratory.
They therefore cunned, by associating it with a magnesium ion, easier to control, which they used as an interface. Meanwhile, The latter reacts to the same movements as aluminum. Furthermore, and allows researchers to deduce the oscillations thanks to a technique called quantum logic spectroscopy. However, A bit like putting a finger on a bell that cannot be touched. However, but that another object is resonated in its place.
In addition to associating it with another atom, it must also be maintained perfectly motionless in space. Therefore, most precise atomic clock ever new Additionally. However, This is the role of the ion most precise atomic clock ever trap that you see in the photo above. Nevertheless, an electromagnetic device that suspends the atoms in the void. The problem is that in this scale, everything is shaking up: imperfect electrostatic fields, tiny vibrations, parasitic micromns … So many disturbances that distort the measure. The trap used so far in the NIST caused electric imbalances that disrupted the ions.
The researchers therefore completely redesigned its geometry: they modified the layout of the electrodes. used a thicker diamond plate, and rebalanced its electric fields to maximize the parasitage. Once stabilized, you still have to be able to measure the ion oscillations, without losing precision. To do this, they used a laser, designed to “read” the vibrations of the atom.
Again. this laser should not cause any disturbance (which would distort the measure). its frequency most precise atomic clock ever new must remain perfectly stable for the duration of the observation. To guarantee this regularity. most precise atomic clock ever the beam has been guided over more than two kilometers of fiber optics. an assembly which makes it possible to compensate for variations and eliminate parasitic noises.
This ultra-stable system allows a much longer reading of ion oscillations: up to a whole second, against only 150 milliseconds before. This time saving was essential to reach the level of precision targeted.. it above all made it possible to dramatically reduce the total duration of the measures: which required three weeks can now be accomplished in a day and a half.
No one will wonder what will this clock be used for. if we don’t need it to know if it is noon or midnight? In reality, this is not the right question to ask.
It was not made to most precise atomic clock ever new give us the time, but to better understand the world around us. At such a level of precision. most precise atomic clock ever it can measure the slowdown in time due to an altitude variation of a few centimeters. follow the slow deformations of the earthly crust, or even test certain predictions or limits of general relativity.
In the near future. it could improve the stability of our communication networks. make our objects connected or our GPS more precise, make bank networks, etc. make reluctance, etc. Nothing that you will not notice directly. but if we want tomorrow. to fly fleets of autonomous drones, synchronize quantum networks or detect gravitational anomalies with sensors distributed throughout the planet, we will need a more stable reference time than the one we use today. Cesium and UTC were very good comrades, but 58 years later, maybe it is time to retire?
Most precise most precise atomic clock ever new atomic clock ever new
Most precise atomic clock ever
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