LAUSR

Bidirectional quantum teleportation scheme is a two-way quantum communication process, in which two parties simultaneously receive each other information. Recently, in paper (Zhou et al., IEEE Access, 7 , 44269 2019 ), a six-qubit cluster state has been used to teleport a three-qubit entangled state (Alice) and arbitrary single-qubit unknown quantum state (Bob) bidirectionally. In experimental point of view, the preparation and the maintenance of cluster type entangled state is very difficult and costly. So, in this paper we have designed an optimal scheme (less amount of quantum resource) of bidirectional quantum teleportation scheme and shown that proposed scheme requires an optimized amount of quantum resource.