Compact quantum gates on electron-spin qubits assisted by diamond nitrogen-vacancy centers inside cavities
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.
Cite
@article{arxiv.1310.0197,
title = {Compact quantum gates on electron-spin qubits assisted by diamond nitrogen-vacancy centers inside cavities},
author = {Hai-Rui Wei and Fu-Guo Deng},
journal= {arXiv preprint arXiv:1310.0197},
year = {2013}
}
Comments
12 pages, 6 figures. To appear in