Probabilistic and Controlled Teleportation of an Arbitrary Two-Qubit State via One Dimensional Five-Qubit Cluster-Class State
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We propose a three-party scheme for probabilistically teleporting an arbitrary two-qubit state. In the scheme, a one-dimensional five-qubit cluster-class state is utilized as the quantum channel. The sender performs two Bell-state measurements (BSMs) on the qubits at hand and the controller makes a single-qubit measurement. With the sender’s and the controller’s helps, the receiver can reconstruct the original state with a certain probability by introducing an auxiliary qubit and making appropriate unitary operations. Moreover, the total success probability and classical communication cost of the present scheme are also calculated.
KeywordsControlled teleportation One-dimensional five-qubit cluster-class state Success probability Classical communication cost
This work was supported in part by the Higher Education Natural Science Foundation of Anhui Province under Grant No. KJ2010B383., the Foundation for College Excellent Young Talents of Anhui Province under Grant No. 2012SQRL205, and the foundation from Suzhou College under Grant No. 2012SZXYJYXM019.