Suppression of magnetic state decoherence using ultrafast optical pulses

In order to suppress spontaneous decay, the decaying particle should be perturbed on a time scale that is shorter than the correlation time of the vacuum field. One way to accomplish this is to apply ultrafast optical pulses during a single collision in a manner that inhibits magnetic state decoherence. In turn, this enables to preserve the magnetic state coherence in the presence of collisions.