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arXiv · 1310.0197

Compact quantum gates on electron-spin qubits assisted by diamond nitrogen-vacancy centers inside cavities

Hai-Rui Wei·Fu-Guo Deng
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Abstract

Constructing compact quantum circuits for universal quantum gates on solid-state systems is crucial for quantum computing. We present some compact quantum circuits for a deterministic solid-state quantum computing, including the CNOT, Toffoli, and Fredkin gates on the diamond nitrogen-vacancy centers confined inside cavities, achieved by some input-output processes of a single photon. Our quantum circuits for these universal quantum gates are simple and economic. Moreover, additional electron qubits are not employed, but only a single-photon medium. These gates have a long coherent time. We discuss the feasibility of these universal solid-state quantum gates, concluding that they are feasible with current technology.

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Hai-Rui Wei, Fu-Guo Deng. 2013-10-21. Compact quantum gates on electron-spin qubits assisted by diamond nitrogen-vacancy centers inside cavities. https://doi.org/10.1103/physreva.88.042323

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