Without Classical Communication Of Any Two-particle States Of Quantum Transport

Without classical communication, a scheme for teleporting an arbitrary two-qubit state by using two EPR pairs is proposed. The two EPR pairs are shared by the sender and the receiver. After two Bell measurements are made by the sender, the control-operation information is encoded based on the outcomes of Bell measurements and is sent to the receiver by the sender. After the control-operation information is decoded by the receiver, the arbitrary two-qubit state is reconstructed at the site of the receiver by using appropriate unitary operations based on the decoded information. At last, the scheme is generalized to teleport an arbitrary N-qubit state.