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arXiv 1202.5344quant-phcond-mat.mes-hall
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具有超导量子比特的接近容错阈值的完备通用量子门组

Complete universal quantum gate set approaching fault-tolerant thresholds with superconducting qubits

Jerry M. Chow, Jay M. Gambetta, A. D. Corcoles, Seth T. Merkel, John A. Smolin, Chad Rigetti, S. Poletto, George A. Keefe, Mary B. Rothwell, J. R. Rozen, Mark B… 展开作者

Jerry M. Chow, Jay M. Gambetta, A. D. Corcoles, Seth T. Merkel, John A. Smolin, Chad Rigetti, S. Poletto, George A. Keefe, Mary B. Rothwell, J. R. Rozen, Mark B. Ketchen, M. Steffen

摘要:

我们使用量子过程层析成像来表征两个超导单频单结transmon量子比特上的全微波门的完整通用集合。所有提取的门的正确性,包括克利福德群生成器,单量子位π/4和π/8旋转,以及两个量子位控制的非,超过95%(98%),没有(有)考虑状态准备和测量误差。此外,我们引入了一个过程图表示的泡利基础,这是视觉上的效率和信息。这种高保真度的门集作为另一个关键的构建模块,用于纠错方案的超导量子位的可扩展架构。

英文摘要:

We use quantum process tomography to characterize a full universal set of all-microwave gates on two superconducting single-frequency single-junction transmon qubits. All extracted gate fidelities, including those for Clifford group generators, single-qubit pi/4 and pi/8 rotations, and a two-qubit controlled-NOT, exceed 95% (98%), without (with) accounting for state preparation and measurement errors. Furthermore, we introduce a process map representation in the Pauli basis which is visually efficient and informative. This high-fidelity gate set serves as another critical building block towards scalable architectures of superconducting qubits for error correction schemes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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