With this technique accurate atomic clocks can be developed.
Vladan Vuletic, Physics professor at MIT, explains that before it was unknown that one photon can alter the state of 3000 atoms.
The researches have discovered a new class of entangled states.
Entanglement happens when two particles change at the same time and in the same way.
Albert Einstein once referred entanglement as “spooky action”.
Scientists have been looking for techniques to entangle the atoms to provide useful applications like the atomic clock.
The atomic clock work by reading the vibrations within group of trapped atoms with the laser beam in the clock and vibrations indicate the passing of one second.
The atomic clocks are very accurate. If they have run since the Big Bang about 13.8 billion years ago, today the inaccuracy would be one second.
The more the entangled particles in the clock the more accurate the clock will be. The highest record of entangles atoms in the past is 100.
Researches by using the weak laser light they could entangle 3000 atoms and that laser contain one photon.
This is a great development towards atomic clocks.