Fig. 1. Schematic diagram of experimental device for continuous variable quantum entanglement swapping^[16]

Fig. 2. Schematic diagram of three station synchronization devices based on continuous variable quantum entanglement swapping

Fig. 3. Relationship between orthogonal amplitude component and delay time Δt(Δt=0)

Fig. 4. Relationship between orthogonal amplitude component and delay time Δt(Δt=0.2 ns)

Fig. 5. Relationship between orthogonal amplitude component and delay time Δt(Δt=10 ns)

Fig. 6. Schematic diagram of key distribution process of continuous variable

Fig. 7. Bit error rate varies with V_AN₀ with different compression degrees r

Fig. 8. Block diagram of beam splitter attack

Fig. 9. Bit error rate varies with R