Fig. 4: Temporal multimode capacity. | Nature Communications

Fig. 4: Temporal multimode capacity.

From: Non-classical correlations over 1250 modes between telecom photons and 979-nm photons stored in 171Yb3+:Y2SiO5

Fig. 4

a Concept of the temporal multimode capacity analysis. The storage time is set to 1/Δ = 25 μs, with each mode having a duration of Tm = 20 ns. b Total number of coincidence detections (blue circles) and second-order cross-correlation (red squares), as a function of the number of analyzed modes. The \({g}_{si}^{(2)}\) value is calculated by integrating over the entire mode Tm, which reduces it to about half of the peak value reported in Fig. 2 for 25 μs.

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