Fig. 3: QKD experiment results of each node pair.
From: Fully heterogeneous prepare-and-measure quantum network for the next stage of quantum internet
a 3D bar chart to show the secret key length of each node pair. The x and y-axis represent the two nodes. The z-axis denotes the secret key length. b Important experimental parameters and results of each node pair. A: Alice; B: Bob; C: Charlie; D: David; F: Frank; T: time for raw key accumulation; L: fiber length between the two nodes; f: error correction efficiency; lsift: sifted key length; eb: bit error rate; lsec: secret key length.
