Asymmetric Bidirectional Controlled Teleportation by Using Six-qubit Cluster State.

We propose a scheme for asymmetric bidirectional controlled teleportation by using a six-qubit cluster state as quantum channel. In our scheme, Alice can transmit an arbitrary two-qubit entangled state to Bob and at the same time Bob can teleport an arbitrary single-qubit state to Alice under the control of the supervisor Charlie. [ABSTRACT FROM AUTHOR]