Universal Gate Operations on Nuclear Spin Qubits in an Optical Tweezer Array of ^{171}Yb Atoms
Neutral atom arrays are a rapidly developing platform for quantum science. Recently, alkaline earth atoms (AEAs) have attracted interest because their unique level structure provides several opportunities for improved performance. In this work, we present the first demonstration of a universal set o...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2022-05-01
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| Series: | Physical Review X |
| Online Access: | http://doi.org/10.1103/PhysRevX.12.021028 |
| _version_ | 1811339298420555776 |
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| author | Shuo Ma Alex P. Burgers Genyue Liu Jack Wilson Bichen Zhang Jeff D. Thompson |
| author_facet | Shuo Ma Alex P. Burgers Genyue Liu Jack Wilson Bichen Zhang Jeff D. Thompson |
| author_sort | Shuo Ma |
| collection | DOAJ |
| description | Neutral atom arrays are a rapidly developing platform for quantum science. Recently, alkaline earth atoms (AEAs) have attracted interest because their unique level structure provides several opportunities for improved performance. In this work, we present the first demonstration of a universal set of quantum gate operations on a nuclear spin qubit in an AEA, using ^{171}Yb. We implement narrow-line cooling and imaging using a newly discovered magic trapping wavelength at λ=486.78 nm. We also demonstrate nuclear spin initialization, readout, and single-qubit gates and observe long coherence times [T_{1}≈20 s and T_{2}^{*}=1.24(5) s] and a single-qubit operation fidelity F_{1Q}=0.99959(6). We also demonstrate two-qubit entangling gates using the Rydberg blockade, as well as coherent control of these gate operations using light shifts on the Yb^{+} ion core transition at 369 nm. These results are a significant step toward highly coherent quantum gates in AEA tweezer arrays. |
| first_indexed | 2024-04-13T18:24:19Z |
| format | Article |
| id | doaj.art-1b6e5d1494824515b8f2738d9a26eed3 |
| institution | Directory Open Access Journal |
| issn | 2160-3308 |
| language | English |
| last_indexed | 2024-04-13T18:24:19Z |
| publishDate | 2022-05-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review X |
| spelling | doaj.art-1b6e5d1494824515b8f2738d9a26eed32022-12-22T02:35:19ZengAmerican Physical SocietyPhysical Review X2160-33082022-05-0112202102810.1103/PhysRevX.12.021028Universal Gate Operations on Nuclear Spin Qubits in an Optical Tweezer Array of ^{171}Yb AtomsShuo MaAlex P. BurgersGenyue LiuJack WilsonBichen ZhangJeff D. ThompsonNeutral atom arrays are a rapidly developing platform for quantum science. Recently, alkaline earth atoms (AEAs) have attracted interest because their unique level structure provides several opportunities for improved performance. In this work, we present the first demonstration of a universal set of quantum gate operations on a nuclear spin qubit in an AEA, using ^{171}Yb. We implement narrow-line cooling and imaging using a newly discovered magic trapping wavelength at λ=486.78 nm. We also demonstrate nuclear spin initialization, readout, and single-qubit gates and observe long coherence times [T_{1}≈20 s and T_{2}^{*}=1.24(5) s] and a single-qubit operation fidelity F_{1Q}=0.99959(6). We also demonstrate two-qubit entangling gates using the Rydberg blockade, as well as coherent control of these gate operations using light shifts on the Yb^{+} ion core transition at 369 nm. These results are a significant step toward highly coherent quantum gates in AEA tweezer arrays.http://doi.org/10.1103/PhysRevX.12.021028 |
| spellingShingle | Shuo Ma Alex P. Burgers Genyue Liu Jack Wilson Bichen Zhang Jeff D. Thompson Universal Gate Operations on Nuclear Spin Qubits in an Optical Tweezer Array of ^{171}Yb Atoms Physical Review X |
| title | Universal Gate Operations on Nuclear Spin Qubits in an Optical Tweezer Array of ^{171}Yb Atoms |
| title_full | Universal Gate Operations on Nuclear Spin Qubits in an Optical Tweezer Array of ^{171}Yb Atoms |
| title_fullStr | Universal Gate Operations on Nuclear Spin Qubits in an Optical Tweezer Array of ^{171}Yb Atoms |
| title_full_unstemmed | Universal Gate Operations on Nuclear Spin Qubits in an Optical Tweezer Array of ^{171}Yb Atoms |
| title_short | Universal Gate Operations on Nuclear Spin Qubits in an Optical Tweezer Array of ^{171}Yb Atoms |
| title_sort | universal gate operations on nuclear spin qubits in an optical tweezer array of 171 yb atoms |
| url | http://doi.org/10.1103/PhysRevX.12.021028 |
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