Synchronous multicast-based quantum teleportation scheme via a six-qubit entangled state.

With the deepening of research on quantum information transmission, multicast-based quantum teleportation (QT) has attracted considerable attention. In this paper, utilizing the six-qubit cluster state entanglement feature, a synchronous multicast-based QT scheme is presented, which fulfills multicast-based QT among four participants. This means that a controller is not needed, the sender Alice can realize quantum multicast communication successfully and efficiently, which makes the receivers Bob, Charlie and David gain the desired states synchronously with only knowing the measurement outcomes of Alice. Our scheme realizes the synchronous transmission of different coded information. In addition, we analyze the impact of four distinct noises and calculate the fidelities of the output states. [ABSTRACT FROM AUTHOR]