Superluminal propagation via coherent manipulation of the Raman gain process

A model developed that shows the possibility of superluminal propagation through coherent manipulation of a Raman process was analyzed. It was observed that the superluminal propagation could be achieved by applying a control field so that the Raman gain peak splits into a doublet thereby producing anomalous dispersion in the region. It was also found that the large superluminality could be applied in a Bose condensate also. The results show that the values that were derived were sensitive to the relaxation parameters and control field detuning.

Superluminal propagation via coherent manipulation of the Raman gain process Academic Article