Figure 8
Frequency-resolved Monte Carlo simulation of the Mollow triplet in dual frequency windows. The case on the left (right) is for driving the two-level system at resonance (with detuning Δ = 1.5γ σ ). The dotted (solid) lineshape is the triplet as detected by an ideal (finite-bandwidth Γ) detector. The color code within the spectra is for one filter kept fixed at a leapfrog window (top case) or at a sideband (bottom case). Sequences of clicks have been recorded in the windows i and ii and iii and iv, the two groups being independent (that is, clicks between, e.g, i and iii are not correlated). Small samples are displayed, with renormalization of time to compare equal intensities between the two groups (time is the same within each group). Strong correlations of photons with different frequencies are clear, in particular, the simultaneity of leapfrog emission and their heralding character with detuning are obvious. The cross-correlations are shown as measured by the Monte Carlo data (left column) and as computed by the theory of frequency-resolved photon correlation (2nd column, red). 1/γ σ sets the unit, Ω = 5γ σ , Δ = 1.5γ σ and Γ = γ σ . The clicks correspond to the emission events of the operators c4 and c5 in Eq. (18b).
