作者
TM Graham, M Kwon, B Grinkemeyer, Z Marra, X Jiang, MT Lichtman, Y Sun, M Ebert, M Saffman
发表日期
2019/12/6
期刊
Physical review letters
卷号
123
期号
23
页码范围
230501
出版商
American Physical Society
简介
We demonstrate high fidelity two-qubit Rydberg blockade and entanglement on a pair of sites in a large two-dimensional qubit array. The qubit array is defined by a grid of blue detuned lines of light with 121 sites for trapping atomic qubits. Improved experimental methods have increased the observed Bell state fidelity to . Accounting for errors in state preparation and measurement we infer a fidelity of . Accounting for errors in single qubit operations we infer that a Bell state created with the Rydberg mediated gate has a fidelity of . Comparison with a detailed error model based on quantum process matrices indicates that finite atom temperature and laser noise are the dominant error sources contributing to the observed gate infidelity.
学术搜索中的文章
TM Graham, M Kwon, B Grinkemeyer, Z Marra, X Jiang… - Physical review letters, 2019