Bidirectional quantum teleportation in multi-hop communication network

In this article, we first propose a deterministic bidirectional quantum teleportation scheme in the framework of general multi-hop network. In the scheme, three-qubit GHZ state and Bell state play the role of shared resources. The shared quantum channel is determined by the parity of the hop number of the communication network. Entanglement swapping of distant participants is accomplished by Bell state measurement and two-qubit measurement. Receivers at each side can recover the target state according to general formulas with one hundred percent. Then, we give the general form of our scheme in noisy environment. The performance of the scheme in four-hop network suffering bit flip noise is presented as an illustrative example.