Figure 3
From: Manipulating Frequency-Bin Entangled States in Cold Atoms

Maximum entanglement distribution.
Frequency-bin entangled state peak power density spatial distribution in units of So for the evolution profiles of Fig. 2. Each curve is plotted at a specific time tmax obtained from the ratio of the position z and each of the evolution overall velocities shown Fig. 2 (orange dashed). Green curves describe the weak damping case of Fig. 2a respectively for δp = 0 (solid) and δp = 0.1 × γ2 (dashed). Red curve (dot – dashed) describes the strong damping case of Fig. 2b, while blue and purple curves correspond to the two frequency-mode swapping intensity distribution of Fig. 2(c, d).