Asymmetric Bidirectional Controlled Teleportation by using a Seven-qubit Entangled State

We propose a new protocol of asymmetric bidirectional controlled teleportation by using a seven-qubit entangled state as the quantum channel. That is to say Alice wants to transmit an arbitrary single-qubit state to Bob and Bob wants to transmit an arbitrary two-qubit state to Alice via the control of the supervisor Charlie. One only need perform the Bell-state measurements and single-qubit measurement.