Fig. 5: Effect of source momentum width on transmission and Fisher information.
Transmission coefficient (red dashed curve) and classical Fisher information (black curve) are plotted as a function of the atomic wave vector, (a) for an infinitely narrow momentum width atomic cloud and (b) for a finite momentum width atomic cloud. The optimum \({\tilde{F}}_{C}\) is positioned almost at the \({\tilde{k}}_{i}\) corresponding to the transmission peak in the first case. However, it deviates from the transmission peak point when the cloud has a finite momentum width. Here, k0 = 2π/(780 nm).
