.png){kind=icon}
返回
Logical-qubit operations in an error-detecting surface code
.png){kind=icon}
OA
AI
DOI：10.1038/s41567-021-01423-9.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Future fault-tolerant quantum computers will require storing and processing quantum data in logical qubits. Here we realize a suite of logical operations on a distance-2 surface code qubit built from seven physical qubits and stabilized using repeated error-detection cycles. Logical operations include initialization into arbitrary states, measurement in the cardinal bases of the Bloch sphere and a universal set of single-qubit gates. For each type of operation, we observe higher performance for fault-tolerant variants over non-fault-tolerant variants, and quantify the difference. In particular, we demonstrate process tomography of logical gates, using the notion of a logical Pauli transfer matrix. This integration of high-fidelity logical operations with a scalable scheme for repeated stabilization is a milestone on the road to quantum error correction with higher-distance superconducting surface codes. Large-scale quantum computers will manipulate quantum information encoded in error-corrected logical qubits. A complete set of operations has now been realized on a logical qubit with error detection.
期刊
IF:
18.4
论文数:
6.8K
被引数:
5.7W
机构
引用论文
Hardware-Efficient Leakage-Reduction Scheme for Quantum Error Correction with Superconducting Transmon Qubits.png)
PRX QUANTUMOAAI
PRX QUANTUMIF11
OAAI分享收藏分享收藏Removing leakage-induced correlated errors in superconducting quantum error correctionNATURE COMMUNICATIONS
OAAI
NATURE COMMUNICATIONSIF15.7
OAAI分享收藏BER-H2: a new anti-Ki-1 (CD30) monoclonal antibody directed at a formol- resistant epitopeBloodOAAI
BloodIF0
OAAI分享收藏
查看更多内容