Study of the effect of super-atom dephasing on Rydberg blockade in thermal vapor

Abstract

Abstract We present a theoretical model with a large number of interacting atoms that can be used to study the Rydberg blockade in thermal vapor. Exact calculations for two, three and four interacting atoms are extrapolated to formulate the model for N interacting atoms using the method of induction. The effect of the decay mechanisms such as the laser frequency noise and the super-atom dephasing arising due to the relative motion of the atoms on the blockade processes are discussed. We show that with large laser frequency noise the blockade effect vanishes. However, in the presence of large super-atom dephasing, the blockade effect does not vanish completely which suggests that the blockade can be observed in the thermal vapor system.