Fig. 3: Bell parameters \(S^{(m)}\) as a function of t for \(\chi = 1\%\).
From: Long-lived and multiplexed atom-photon entanglement interface with feed-forward-controlled readouts
Blue squares are experimental data of the decay of the parameter \(S^{(m = {{{\mathrm{3}}}})}\) for various storage times t. The error bars represent the standard deviation of measured values.
