article
Controlled dense coding using the Greenberger-Horne-Zeilinger state
Jiu-Cang Haoa b, Chuan‐Feng Lia b, Guang‐Can Guoa b
- aLaboratory of Quantum Communication and Quantum Computation and Department of Physics, University of Science and Technology of China, Hefei, 230026, People’s Republic of China
- bLaboratory of Quantum Communication and Quantum Computation and Department of Physics, University of Science and Technology of China, Hefei 230026, People's Republic of China
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Abstract
In this paper we investigate the dense coding with a three-particle entangled state. In this case one party (Alice) can send information to the second party (Bob), whereas the local measurement of the third party (Cliff) serves as quantum erasure. The quantum channel between Alice and Bob is controlled by Cliff via the measurement.