Quantum mechanic frequency filter for atomic clocks

9 marzo 2015

In an atomic clock, electrons jumping from one orbit to another decides the clock’s frequency. To get the electrons to jump, researchers shine light on the atoms using stabilized laser light. It is however challenging to get the laser light frequency ultra precise — there will always be a little ‘noise.’ Now researchers have developed a method that reduces the noise so that it is up to 100 times quieter.