A universal protocol for bidirectional controlled teleportation with network coding

Meng-Yao He,Song-Ya Ma,Kun-Peng Kang

Figure 1. Process of our universal BCQT protocol. Black solid points represent Alice's particles, white points represent Bob's particles, and the gray point represents Charlie's particle. The dotted ellipses indicate Bell-state measurements, and the solid circle is a single-qubit measurement. The solid rectangle indicates the recovery operation.