期刊
PHYSICAL REVIEW LETTERS
卷 93, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.93.040505
关键词
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We report the implementation of quantum dense coding on individual atomic qubits with the use of two trapped (9)Be(+) 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).
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