Quantum Logic Clock is 100 Times More Accurate Than The Standard Atomic Clock

The device could be a real candidate for the development of a standard frequency or time for a new generation of tracking and measuring equipment said study lead the Boulder (USA) National Institute of Standards and Technology (NIST) physicist Chin-wen (James) Chou.

Chou team is one of many trying to create a new shift of the current international standard – the cesium atomic clock. Cesium clock error of approximately one second every 100 million years (the frequency measurement error of 5.1 E-16 – the current American National Standard). Chou team work is the world’s first quantum clock but its use of aluminum and magnesium ions, was able to increase the accuracy of two-fold as compared with aluminum and beryllium using its predecessors (the most recent model the frequency precision of 8.6 e-18).
Quantum clock measures the time follower of ultraviolet laser frequency fluctuations. Unfortunately, even the world’s best lasers from its normal oscillation frequency deviation by one stroke over an hour, says Chou. To increase the laser frequency stability, the frequency variations to be associated with something much more stable. First frequency used to generate electrically charged atom of aluminum, vibrant 1.1 Petaherco (PHz) or 1.1 times per second frequency.
The first stage is carried out by measuring the ion vibrations struck to ultraviolet (UV) laser whose frequency is in line with the charged atomic vibrations. The aluminum ion can be either low-or high-energy quantum state. If the laser frequency of the ion frequency, and then John changes his status but if the laser frequency at a slight deviation, ion change their status, but not as effectively explains the scientist. The effectiveness of this change we can tune the laser to the frequency re-match with the aluminum ion frequency.
Surprisingly, however a team of scientists can not say exactly how many times you will see a clock in one second. This is because the current standard is based on the second so-called cesium fountain clock which can be measured by more accurate than machine precision. Cesium atomic clocks operating on a similar principle as quantum aluminum clock but is often used as the base of the cesium atom vibrations which makes microwave frequency source.
In the future, watches exact quantum physicists may help to identify the issues afflicting the universal physical constants, such as the speed of light in vacuum, or Planck’s constant. According to academics, physical constants with time should remain constant, but some theories argue that the constant may vary slightly. Quantum clocks may allow measurement of the tiny movements says the specialist. Since the accuracy of atomic clocks and highly depends on Global Positioning System (GPS). If we can accurately measure the time it will be able to measure and improve their situation says Chou. Moreover, these clocks could potentially allow scientists to demonstrate the effects of general relativity theory for example to determine how strong gravity distorts time.
So far plans for an aluminum ion clock for use as an official international time standard is not yet available. For the implementation of the device clock speed to be transmitted to the world – that can be performed using optical cables but they can maintain a stable rate of only around 100 km long section.