Coherence Preservation of a Single Neutral Atom Qubit Transferred between Magic-Intensity Optical Traps
文献类型：期刊论文
| 作者 | Yang, Jiaheng1,2; He, Xiaodong1,3; Guo, Ruijun1,2; Xu, Peng1,3; Wang, Kunpeng1,2; Sheng, Cheng1; Liu, Min1,3; Wang, Jin1,3; Derevianko, Andrei3,4; Zhan, Mingsheng1,3 |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2016-09-14 |
| 卷号 | 117期号:12 |
| 英文摘要 | We demonstrate that the coherence of a single mobile atomic qubit can be well preserved during a transfer process among different optical dipole traps (ODTs). This is a prerequisite step in realizing a large-scale neutral atom quantum information processing platform. A qubit encoded in the hyperfine manifold of an Rb-87 atom is dynamically extracted from the static quantum register by an auxiliary moving ODT and reinserted into the static ODT. Previous experiments were limited by decoherences induced by the differential light shifts of qubit states. Here, we apply a magic-intensity trapping technique which mitigates the detrimental effects of light shifts and substantially enhances the coherence time to 225 +/- 21 ms. The experimentally demonstrated magic trapping technique relies on the previously neglected hyperpolarizability contribution to the light shifts, which makes the light shift dependence on the trapping laser intensity parabolic. Because of the parabolic dependence, at a certain "magic" intensity, the first order sensitivity to trapping light-intensity variations over ODT volume is eliminated. We experimentally demonstrate the utility of this approach and measure hyperpolarizability for the first time. Our results pave the way for constructing scalable quantum-computing architectures with single atoms trapped in an array of magic ODTs. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | BOTTLE BEAM TRAP ; QUANTUM |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000383172400006 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/9508]  |
| 专题 | 武汉物理与数学研究所_原子分子光物理研究部 |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan Natl Lab Optoelect, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Ctr Cold Atom Phys, Wuhan 430071, Peoples R China 4.Univ Nevada, Dept Phys, Reno, NV 89557 USA |
| 推荐引用方式 GB/T 7714 | Yang, Jiaheng,He, Xiaodong,Guo, Ruijun,et al. Coherence Preservation of a Single Neutral Atom Qubit Transferred between Magic-Intensity Optical Traps[J]. PHYSICAL REVIEW LETTERS,2016,117(12). |
| APA | Yang, Jiaheng.,He, Xiaodong.,Guo, Ruijun.,Xu, Peng.,Wang, Kunpeng.,...&Zhan, Mingsheng.(2016).Coherence Preservation of a Single Neutral Atom Qubit Transferred between Magic-Intensity Optical Traps.PHYSICAL REVIEW LETTERS,117(12). |
| MLA | Yang, Jiaheng,et al."Coherence Preservation of a Single Neutral Atom Qubit Transferred between Magic-Intensity Optical Traps".PHYSICAL REVIEW LETTERS 117.12(2016). |
入库方式： OAI收割
来源：武汉物理与数学研究所
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