Fig. 3: Improving the entanglement connection process.
From: Towards entanglement distillation between atomic ensembles using high-fidelity spin operations
a Scheme for optimization of the entanglement connection process. B and C are two adjacent nodes. Anti-Stokes, AS; beam splitter, BS; Detector, D. b The successful probabilities of the entanglement connection process as a function of the swapping levels (n) utilizing single-photon detectors with photon number resolution of 0 (triangle), 50% (dot), and 100% (square). Here we have assumed the total efficiency η = 0.9 and excitation rate pc = 0.001.
