Abstract
We present a scheme for bidirectional controlled teleportation by using a five-qubit composite GHZ-Bell state as quantum channel. Based on the C-not operation and single qubit measurements, Alice may transmit an arbitrary single qubit state of qubit A to Bob and Bob may transmit an arbitrary single qubit state of qubit B to Alice via the control of the supervisor Charlie.
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Acknowledgements
This work is supported by the National Natural Science Foundation of China, the Natural Science Foundation of Jiangxi Province, China, the Research Foundation of state key laboratory of advanced optical communication systems and networks, Shanghai Jiao Tong University, China, and the Research Foundation of the Education Department of Jiangxi Province.
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Appendix
Appendix
Alice’s possible measurement results, Bob’s possible measurement results, Charlie’s possible measurement results and the corresponding transformations performed by Alice and Bob on qubits 3 and 4, respectively, where σ i,i∈{x,y,z} are Pauli matrices (Table 1).
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Li, Yh., Nie, Lp. Bidirectional Controlled Teleportation by Using a Five-Qubit Composite GHZ-Bell State. Int J Theor Phys 52, 1630–1634 (2013). https://doi.org/10.1007/s10773-013-1484-8
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DOI: https://doi.org/10.1007/s10773-013-1484-8