Teleportation of an unknown two-particle entangled state via an asymmetric three-particle entanglement state

In this article, a protocol for the teleportation of an unknown two-particle entanglement is proposed. The feature of the present protocol is that we utilize an asymmetric three-particle entangled state as the quantum channel. The optimal discrimination between two nonorthogonal quantum states is adopted. It is shown that an unknown two-particle entangled state can be probabilistically teleported from the sender to the remote receiver on condition that the co-sender successfully collaborates. The fidelity in this protocol is one. In addition, the probability of the successful teleportation is calculated and all kinds of transformations performed by the sender and the receiver are provided in detail.