15 Facts About Atomic clock

An atomic clock is a clock that measures time by monitoring the resonant frequency of atoms.

Main variety of atomic clock uses caesium atoms cooled to temperatures that approach absolute zero.

Atomic clock proposed the concept in 1945, which led to a demonstration of a clock based on ammonia in 1949.

Scientists at NIST developed a quantum logic Atomic clock that measured a single aluminum ion in 2019 with a frequency uncertainty of 10.

Core of the radio frequency atomic clock is a tunable microwave cavity containing a gas.

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Atomic clock resonance has a much higher Q than mechanical devices.

The first Atomic clock had an accuracy of 10, and the last Atomic clock had an accuracy of 10.

In March 2008, physicists at NIST described a quantum logic Atomic clock based on individual ions of beryllium and aluminium.

In February 2010, NIST physicists described a second, enhanced version of the quantum logic Atomic clock based on individual ions of magnesium and aluminium.

In 2012, it was shown that a nuclear Atomic clock based on a single Th ion could provide a total fractional frequency inaccuracy of 1.

At this frequency uncertainty, this JILA optical lattice Atomic clock is expected to neither gain nor lose a second in more than 15 billion years.

The 3D quantum gas strontium optical lattice Atomic clock's centerpiece is an unusual state of matter called a degenerate Fermi gas .

The reported minor deviation is explainable as the concerned Atomic clock oscillators are in slightly different environments.

The Atomic clock was successfully launched on 25 June 2019, activated on 23 August 2019 and deactivated two years later on 18 September 2021.

Radio Atomic clock is a Atomic clock that automatically synchronizes itself by means of radio time signals received by a radio receiver.