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Quantum Dense Coding with Atomic Qubits



T Schaetz, Murray D. Barrett, Dietrich G. Leibfried, J Chiaverini, Joseph W. Britton, Wayne M. Itano, John D. Jost, Christopher Langer, David J. Wineland


We report the implementation of quantum dense coding on individual atomic qubits with the use of two trapped 9Be+ ions. The protocol is implemented with a complete Bell measurement that distinguishes the four operations used to encode two bits of classical information. We measure an average transmission fidelity of 0.85(1) and determine a channel capacity of 1.16(1).
Physical Review Letters


Schaetz, T. , Barrett, M. , Leibfried, D. , Chiaverini, J. , Britton, J. , Itano, W. , Jost, J. , Langer, C. and Wineland, D. (2004), Quantum Dense Coding with Atomic Qubits, Physical Review Letters, [online], (Accessed June 12, 2024)


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Created January 1, 2004, Updated February 17, 2017