内体金属富勒烯作为分子高旋转量子位:Gd2@C79N中的多种拉比循环
Ziqi Hu1, Bo-Wei Dong1, Zheng Liu1
1National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, Beijing Key Laboratory for Magnetoelectric Materials and Devices, College of Chemistry and Molecular Engineering, Peking University , Beijing 100871, People's Republic of China.
Journal of the American Chemical Society
|December 23, 2017
概括
我们合成并描述了Gd2@C79N, 一种新的分子磁铁. 这种高旋转量子比特表现出量子连贯性和长相记忆时间, 满足了格罗弗量子搜索算法的要求.
科学领域:
- 量子信息科学
- 分子磁性
- 纳米技术
背景情况:
- 量子计算需要具有较长连贯时间的稳定量子位.
- 高旋转的分子磁铁为可扩展的量子系统提供了潜力.
- 双金属的aza[80]fullerenes (M2@C79N) 提供了一个子保护的环境,用于旋转操纵.
研究的目的:
- 报告第一个基于加多的二金属aza[80]fullerene (Gd2@C79N) 的晶体测定.
- 研究Gd2@C79N的磁性和量子连贯性,用于量子信息处理.
- 评估Gd2@C79N适合实施格罗弗的量子搜索算法.
主要方法:
- 用X射线结晶学进行结构测定.
- 磁性易感性实验以描述磁性合和基本状态.
- 动态解技术来测量相位记忆时间和评估量子连贯性.
主要成果:
- 成功确定了Gd2@C79N的晶体结构.
- 由于强烈的分子内磁合 (JGd-Rad = 350 ± 20 cm-1),Gd2@C79N具有集体高旋转基底状态 (S = 15/2).
- 在5K时观察到5μs的相位记忆时间的量子连贯性,使得任意的叠加状态操纵成为可能.
结论:
- 对于量子信息处理而言,Gd2@C79N是一个有前途的分子磁铁.
- 这种分子的特性符合格罗弗量子搜索算法的要求.
- 这项工作展示了子保护高旋转量子比特在量子技术进步中的潜力.
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