Fig. 2: Control of quantum-path interferometry on different final states.

a The experimental results of the FID-intensity oscillation of the 5s (blue) and 3d (red) states under different control-pulse intensities, I_c, with the relative phases between the two states Δϕ are labeled. b The non-oscillating intensities \({I}_{f}^{{{{{{\rm{NO}}}}}}}\) of the FID from 4s₂, 5s and 3d states as a function of I_c. The symbols represent the experimental results, while the dashed lines show the simulation results of the five-level model. c The interference visibility of the 5s and 3d states (M₄ and M₅, respectively) as a function of I_c. The dashed lines show the simulation results of the five-level model. The model results for the 5s state is scaled by 0.32 for comparison. d The relative difference of the oscillation phases of the 5s and 3d states, Δϕ, as a function of I_c. The dashed lines are the results of the five-level model simulations. The model results of the individual oscillation phases of the 5s and 3d states (δϕ₄ and δϕ₅, respectively) are also shown. The error bars in c and d are determined by considering both the fitting errors and the standard deviations of experimental results, extracted from 5 individual scans.