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Repetitive Readout and Real-Time Control of Nuclear Spin Qubits in 171Yb Atoms 171Yb原子中核自旋量子比特的重复读出和实时控制
PRX quantum : a Physical Review journal Pub Date : 2023-09-18 DOI: 10.1103/prxquantum.4.030337
William Huie, Lintao Li, Neville Chen, Xiye Hu, Zhubing Jia, Won Kyu Calvin Sun, Jacob P. Covey
{"title":"Repetitive Readout and Real-Time Control of Nuclear Spin Qubits in 171Yb Atoms","authors":"William Huie, Lintao Li, Neville Chen, Xiye Hu, Zhubing Jia, Won Kyu Calvin Sun, Jacob P. Covey","doi":"10.1103/prxquantum.4.030337","DOIUrl":"https://doi.org/10.1103/prxquantum.4.030337","url":null,"abstract":"We demonstrate high-fidelity repetitive measurements of nuclear spin qubits in an array of neutral ytterbium-171 (171Yb) atoms. We show that the qubit state can be measured with a spin-flip probability of 0.004(4) for a single tweezer and 0.012(3) averaged over the array. This is accomplished by high cyclicity of one of the nuclear spin qubit states with an optically excited state under a magnetic field of B=58 G, resulting in a spin-flip probability of approximately 10−5 per scattered photon during fluorescence readout. The performance improves further as ∼1/B2. The state discrimination fidelity is 0.993(4) with a state-averaged readout survival of 0.994(3), limited by off-resonant scattering to dark states. We combine our measurement technique with high-contrast rotations of the nuclear spin qubit via an ac magnetic field to explore two paradigmatic scenarios, including the noncommutativity of measurements in orthogonal bases, and the quantum Zeno mechanism in which measurements “freeze” coherent evolution. Finally, we employ real-time feedforward to repetitively and deterministically prepare the qubit in the +z or −z direction after initializing it in a different basis and performing a measurement in the Z basis. These capabilities constitute an important step towards adaptive quantum circuits with atom arrays.10 MoreReceived 10 May 2023Accepted 21 August 2023DOI:https://doi.org/10.1103/PRXQuantum.4.030337Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.Published by the American Physical SocietyPhysics Subject Headings (PhySH)Research AreasAtomic, optical & lattice clocksQuantum algorithms & computationQuantum controlQuantum information processingQuantum measurementsQuantum Information, Science & TechnologyAtomic, Molecular & Optical","PeriodicalId":74587,"journal":{"name":"PRX quantum : a Physical Review journal","volume":"168 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135153940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Superconducting Cavity Qubit with Tens of Milliseconds Single-Photon Coherence Time 具有数十毫秒单光子相干时间的超导腔量子比特
PRX quantum : a Physical Review journal Pub Date : 2023-09-14 DOI: 10.1103/prxquantum.4.030336
Ofir Milul, Barkay Guttel, Uri Goldblatt, Sergey Hazanov, Lalit M. Joshi, Daniel Chausovsky, Nitzan Kahn, Engin Çiftyürek, Fabien Lafont, Serge Rosenblum
{"title":"Superconducting Cavity Qubit with Tens of Milliseconds Single-Photon Coherence Time","authors":"Ofir Milul, Barkay Guttel, Uri Goldblatt, Sergey Hazanov, Lalit M. Joshi, Daniel Chausovsky, Nitzan Kahn, Engin Çiftyürek, Fabien Lafont, Serge Rosenblum","doi":"10.1103/prxquantum.4.030336","DOIUrl":"https://doi.org/10.1103/prxquantum.4.030336","url":null,"abstract":"A superconducting cavity qubit with coherence time an order of magnitude larger than the state of the art is demonstrated, showing the storage of a Schr\"odinger cat state with a record size of 1024 photons.","PeriodicalId":74587,"journal":{"name":"PRX quantum : a Physical Review journal","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135487462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Mean-Field Approximate Optimization Algorithm 平均场近似优化算法
PRX quantum : a Physical Review journal Pub Date : 2023-09-12 DOI: 10.1103/prxquantum.4.030335
Aditi Misra-Spieldenner, Tim Bode, Peter K. Schuhmacher, Tobias Stollenwerk, Dmitry Bagrets, Frank K. Wilhelm
{"title":"Mean-Field Approximate Optimization Algorithm","authors":"Aditi Misra-Spieldenner, Tim Bode, Peter K. Schuhmacher, Tobias Stollenwerk, Dmitry Bagrets, Frank K. Wilhelm","doi":"10.1103/prxquantum.4.030335","DOIUrl":"https://doi.org/10.1103/prxquantum.4.030335","url":null,"abstract":"","PeriodicalId":74587,"journal":{"name":"PRX quantum : a Physical Review journal","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135879735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Quantum-Classical Decomposition of Gaussian Quantum Environments: A Stochastic Pseudomode Model 高斯量子环境的量子经典分解:一个随机伪模模型
PRX quantum : a Physical Review journal Pub Date : 2023-08-03 DOI: 10.1103/prxquantum.4.030316
Si Luo, Neill Lambert, Pengfei Liang, M. Cirio
{"title":"Quantum-Classical Decomposition of Gaussian Quantum Environments: A Stochastic Pseudomode Model","authors":"Si Luo, Neill Lambert, Pengfei Liang, M. Cirio","doi":"10.1103/prxquantum.4.030316","DOIUrl":"https://doi.org/10.1103/prxquantum.4.030316","url":null,"abstract":"","PeriodicalId":74587,"journal":{"name":"PRX quantum : a Physical Review journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42531152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Programmable N-Body Interactions with Trapped Ions 可编程n -体与捕获离子的相互作用
PRX quantum : a Physical Review journal Pub Date : 2023-07-26 DOI: 10.1103/prxquantum.4.030311
O. Katz, M. Cetina, C. Monroe
{"title":"Programmable N-Body Interactions with Trapped Ions","authors":"O. Katz, M. Cetina, C. Monroe","doi":"10.1103/prxquantum.4.030311","DOIUrl":"https://doi.org/10.1103/prxquantum.4.030311","url":null,"abstract":"","PeriodicalId":74587,"journal":{"name":"PRX quantum : a Physical Review journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44739171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Erratum: Quantum Circuits with Classical Versus Quantum Control of Causal Order [PRX Quantum 2, 030335 (2021)] 勘误表：因果顺序的经典量子电路与量子控制[PRX Quantum 2，030335（2021）]
PRX quantum : a Physical Review journal Pub Date : 2023-07-10 DOI: 10.1103/prxquantum.4.030901
Julian Wechs, Hippolyte Dourdent, A. Abbott, C. Branciard
{"title":"Erratum: Quantum Circuits with Classical Versus Quantum Control of Causal Order [PRX Quantum 2, 030335 (2021)]","authors":"Julian Wechs, Hippolyte Dourdent, A. Abbott, C. Branciard","doi":"10.1103/prxquantum.4.030901","DOIUrl":"https://doi.org/10.1103/prxquantum.4.030901","url":null,"abstract":"","PeriodicalId":74587,"journal":{"name":"PRX quantum : a Physical Review journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46035967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Two-Level-System Dynamics in a Superconducting Qubit Due to Background Ionizing Radiation 背景电离辐射下超导量子比特的两能级系统动力学
PRX quantum : a Physical Review journal Pub Date : 2023-06-29 DOI: 10.1103/prxquantum.4.020356
T. Thorbeck, A. Eddins, I. Lauer, D. McClure, M. Carroll
{"title":"Two-Level-System Dynamics in a Superconducting Qubit Due to Background Ionizing Radiation","authors":"T. Thorbeck, A. Eddins, I. Lauer, D. McClure, M. Carroll","doi":"10.1103/prxquantum.4.020356","DOIUrl":"https://doi.org/10.1103/prxquantum.4.020356","url":null,"abstract":"","PeriodicalId":74587,"journal":{"name":"PRX quantum : a Physical Review journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43097886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
High-On-Off-Ratio Beam-Splitter Interaction for Gates on Bosonically Encoded Qubits 玻色编码量子比特上门的高开关比分束器相互作用
PRX quantum : a Physical Review journal Pub Date : 2023-06-28 DOI: 10.1103/prxquantum.4.020355
Benjamin J. Chapman, Stijn J. de Graaf, Sophia H. Xue, Yaxing Zhang, James Teoh, Jacob C. Curtis, Takahiro Tsunoda, Alec Eickbusch, Alexander P. Read, Akshay Koottandavida, Shantanu O. Mundhada, Luigi Frunzio, M.H. Devoret, S.M. Girvin, R.J. Schoelkopf
{"title":"High-On-Off-Ratio Beam-Splitter Interaction for Gates on Bosonically Encoded Qubits","authors":"Benjamin J. Chapman, Stijn J. de Graaf, Sophia H. Xue, Yaxing Zhang, James Teoh, Jacob C. Curtis, Takahiro Tsunoda, Alec Eickbusch, Alexander P. Read, Akshay Koottandavida, Shantanu O. Mundhada, Luigi Frunzio, M.H. Devoret, S.M. Girvin, R.J. Schoelkopf","doi":"10.1103/prxquantum.4.020355","DOIUrl":"https://doi.org/10.1103/prxquantum.4.020355","url":null,"abstract":"A SNAIL-based coupler is used to devise a programmable beam splitter interaction between two bosonic modes with over an octave separation in frequency; the method is further applied as a primitive for constructing two-qubit bosonic gates.","PeriodicalId":74587,"journal":{"name":"PRX quantum : a Physical Review journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135155985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Electron-Photon Quantum State Heralding Using Photonic Integrated Circuits 利用光子集成电路进行电子-光子量子态预警
PRX quantum : a Physical Review journal Pub Date : 2023-06-26 DOI: 10.1103/prxquantum.4.020351
G. Huang, N. J. Engelsen, O. Kfir, C. Ropers, T. Kippenberg
{"title":"Electron-Photon Quantum State Heralding Using Photonic Integrated Circuits","authors":"G. Huang, N. J. Engelsen, O. Kfir, C. Ropers, T. Kippenberg","doi":"10.1103/prxquantum.4.020351","DOIUrl":"https://doi.org/10.1103/prxquantum.4.020351","url":null,"abstract":"","PeriodicalId":74587,"journal":{"name":"PRX quantum : a Physical Review journal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"62088172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Erratum: Entanglement distribution with minimal memory requirements using time-bin photonic qudits [PRX Quantum 3, 040319 (2022)] 勘误:使用时间bin光子qudits的最小内存要求的纠缠分布[PRX量子，30,040319 (2022)]
PRX quantum : a Physical Review journal Pub Date : 2023-06-23 DOI: 10.1103/prxquantum.4.020901
Yunzhe Zheng, Hemant Sharma, J. Borregaard
{"title":"Erratum: Entanglement distribution with minimal memory requirements using time-bin photonic qudits [PRX Quantum 3, 040319 (2022)]","authors":"Yunzhe Zheng, Hemant Sharma, J. Borregaard","doi":"10.1103/prxquantum.4.020901","DOIUrl":"https://doi.org/10.1103/prxquantum.4.020901","url":null,"abstract":"","PeriodicalId":74587,"journal":{"name":"PRX quantum : a Physical Review journal","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45783524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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