High-Fidelity Universal Gates in the ^{171}Yb Ground-State Nuclear-Spin Qubit
Arrays of optically trapped neutral atoms are a promising architecture for the realization of quantum computers. In order to run increasingly complex algorithms, it is advantageous to demonstrate high-fidelity and flexible gates between long-lived and highly coherent qubit states. In this work, we d...
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American Physical Society
2025-05-01
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| Series: | PRX Quantum |
| Online Access: | http://doi.org/10.1103/PRXQuantum.6.020334 |
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| author | J. A. Muniz M. Stone D. T. Stack M. Jaffe J. M. Kindem L. Wadleigh E. Zalys-Geller X. Zhang C.-A. Chen M. A. Norcia J. Epstein E. Halperin F. Hummel T. Wilkason M. Li K. Barnes P. Battaglino T. C. Bohdanowicz G. Booth A. Brown M. O. Brown W. B. Cairncross K. Cassella R. Coxe D. Crow M. Feldkamp C. Griger A. Heinz A. M. W. Jones H. Kim J. King K. Kotru J. Lauigan J. Marjanovic E. Megidish M. Meredith M. McDonald R. Morshead S. Narayanaswami C. Nishiguchi T. Paule K. A. Pawlak K. L. Pudenz D. Rodríguez Pérez A. Ryou J. Simon A. Smull M. Urbanek R. J. M. van de Veerdonk Z. Vendeiro T.-Y. Wu X. Xie B. J. Bloom |
| author_facet | J. A. Muniz M. Stone D. T. Stack M. Jaffe J. M. Kindem L. Wadleigh E. Zalys-Geller X. Zhang C.-A. Chen M. A. Norcia J. Epstein E. Halperin F. Hummel T. Wilkason M. Li K. Barnes P. Battaglino T. C. Bohdanowicz G. Booth A. Brown M. O. Brown W. B. Cairncross K. Cassella R. Coxe D. Crow M. Feldkamp C. Griger A. Heinz A. M. W. Jones H. Kim J. King K. Kotru J. Lauigan J. Marjanovic E. Megidish M. Meredith M. McDonald R. Morshead S. Narayanaswami C. Nishiguchi T. Paule K. A. Pawlak K. L. Pudenz D. Rodríguez Pérez A. Ryou J. Simon A. Smull M. Urbanek R. J. M. van de Veerdonk Z. Vendeiro T.-Y. Wu X. Xie B. J. Bloom |
| author_sort | J. A. Muniz |
| collection | DOAJ |
| description | Arrays of optically trapped neutral atoms are a promising architecture for the realization of quantum computers. In order to run increasingly complex algorithms, it is advantageous to demonstrate high-fidelity and flexible gates between long-lived and highly coherent qubit states. In this work, we demonstrate a universal high-fidelity gate set with individually controlled and parallel application of single-qubit gates and two-qubit gates operating on the ground-state nuclear-spin qubit in arrays of tweezer-trapped ^{171}Yb atoms. We utilize the long lifetime, flexible control, and high gate fidelity of our system to characterize native gates using single- and two-qubit Clifford and symmetric subspace randomized-benchmarking circuits with more than 200 controlled-Z (cz) gates applied to one or two pairs of atoms. We measure our two-qubit entangling gate fidelity to be 99.72(3)% (99.40(3)%) with (without) postselection. In addition, we introduce a simple and optimized method for calibration of multiparameter quantum gates. These results represent important milestones toward executing complex and general quantum computation with neutral atoms. |
| format | Article |
| id | doaj-art-9b65e14af7fa4a9ca4dc694bd87bc88d |
| institution | Kabale University |
| issn | 2691-3399 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | PRX Quantum |
| spelling | doaj-art-9b65e14af7fa4a9ca4dc694bd87bc88d2025-08-20T03:47:28ZengAmerican Physical SocietyPRX Quantum2691-33992025-05-016202033410.1103/PRXQuantum.6.020334High-Fidelity Universal Gates in the ^{171}Yb Ground-State Nuclear-Spin QubitJ. A. MunizM. StoneD. T. StackM. JaffeJ. M. KindemL. WadleighE. Zalys-GellerX. ZhangC.-A. ChenM. A. NorciaJ. EpsteinE. HalperinF. HummelT. WilkasonM. LiK. BarnesP. BattaglinoT. C. BohdanowiczG. BoothA. BrownM. O. BrownW. B. CairncrossK. CassellaR. CoxeD. CrowM. FeldkampC. GrigerA. HeinzA. M. W. JonesH. KimJ. KingK. KotruJ. LauiganJ. MarjanovicE. MegidishM. MeredithM. McDonaldR. MorsheadS. NarayanaswamiC. NishiguchiT. PauleK. A. PawlakK. L. PudenzD. Rodríguez PérezA. RyouJ. SimonA. SmullM. UrbanekR. J. M. van de VeerdonkZ. VendeiroT.-Y. WuX. XieB. J. BloomArrays of optically trapped neutral atoms are a promising architecture for the realization of quantum computers. In order to run increasingly complex algorithms, it is advantageous to demonstrate high-fidelity and flexible gates between long-lived and highly coherent qubit states. In this work, we demonstrate a universal high-fidelity gate set with individually controlled and parallel application of single-qubit gates and two-qubit gates operating on the ground-state nuclear-spin qubit in arrays of tweezer-trapped ^{171}Yb atoms. We utilize the long lifetime, flexible control, and high gate fidelity of our system to characterize native gates using single- and two-qubit Clifford and symmetric subspace randomized-benchmarking circuits with more than 200 controlled-Z (cz) gates applied to one or two pairs of atoms. We measure our two-qubit entangling gate fidelity to be 99.72(3)% (99.40(3)%) with (without) postselection. In addition, we introduce a simple and optimized method for calibration of multiparameter quantum gates. These results represent important milestones toward executing complex and general quantum computation with neutral atoms.http://doi.org/10.1103/PRXQuantum.6.020334 |
| spellingShingle | J. A. Muniz M. Stone D. T. Stack M. Jaffe J. M. Kindem L. Wadleigh E. Zalys-Geller X. Zhang C.-A. Chen M. A. Norcia J. Epstein E. Halperin F. Hummel T. Wilkason M. Li K. Barnes P. Battaglino T. C. Bohdanowicz G. Booth A. Brown M. O. Brown W. B. Cairncross K. Cassella R. Coxe D. Crow M. Feldkamp C. Griger A. Heinz A. M. W. Jones H. Kim J. King K. Kotru J. Lauigan J. Marjanovic E. Megidish M. Meredith M. McDonald R. Morshead S. Narayanaswami C. Nishiguchi T. Paule K. A. Pawlak K. L. Pudenz D. Rodríguez Pérez A. Ryou J. Simon A. Smull M. Urbanek R. J. M. van de Veerdonk Z. Vendeiro T.-Y. Wu X. Xie B. J. Bloom High-Fidelity Universal Gates in the ^{171}Yb Ground-State Nuclear-Spin Qubit PRX Quantum |
| title | High-Fidelity Universal Gates in the ^{171}Yb Ground-State Nuclear-Spin Qubit |
| title_full | High-Fidelity Universal Gates in the ^{171}Yb Ground-State Nuclear-Spin Qubit |
| title_fullStr | High-Fidelity Universal Gates in the ^{171}Yb Ground-State Nuclear-Spin Qubit |
| title_full_unstemmed | High-Fidelity Universal Gates in the ^{171}Yb Ground-State Nuclear-Spin Qubit |
| title_short | High-Fidelity Universal Gates in the ^{171}Yb Ground-State Nuclear-Spin Qubit |
| title_sort | high fidelity universal gates in the 171 yb ground state nuclear spin qubit |
| url | http://doi.org/10.1103/PRXQuantum.6.020334 |
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