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Endohedral Metallofullerene as Molecular High Spin Qubit: Diverse Rabi Cycles in Gd2@C79N
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2018-01-10 , DOI: 10.1021/jacs.7b12170 Ziqi Hu 1 , Bo-Wei Dong 1 , Zheng Liu 1 , Jun-Jie Liu 2 , Jie Su 1 , Changcheng Yu 1 , Jin Xiong 1 , Di-Er Shi 1 , Yuanyuan Wang 1 , Bing-Wu Wang 1 , Arzhang Ardavan 2 , Zujin Shi 1 , Shang-Da Jiang 1 , Song Gao 1
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2018-01-10 , DOI: 10.1021/jacs.7b12170 Ziqi Hu 1 , Bo-Wei Dong 1 , Zheng Liu 1 , Jun-Jie Liu 2 , Jie Su 1 , Changcheng Yu 1 , Jin Xiong 1 , Di-Er Shi 1 , Yuanyuan Wang 1 , Bing-Wu Wang 1 , Arzhang Ardavan 2 , Zujin Shi 1 , Shang-Da Jiang 1 , Song Gao 1
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An anisotropic high-spin qubit with long coherence time could scale the quantum system up. It has been proposed that Grover's algorithm can be implemented in such systems. Dimetallic aza[80]fullerenes M2@C79N (M = Y or Gd) possess an unpaired electron located between two metal ions, offering an opportunity to manipulate spin(s) protected in the cage for quantum information processing. Herein, we report the crystallographic determination of Gd2@C79N for the first time. This molecular magnet with a collective high-spin ground state (S = 15/2) generated by strong magnetic coupling (JGd-Rad = 350 ± 20 cm-1) has been unambiguously validated by magnetic susceptibility experiments. Gd2@C79N has quantum coherence and diverse Rabi cycles, allowing arbitrary superposition state manipulation between each adjacent level. The phase memory time reaches 5 μs at 5 K by dynamic decoupling. This molecule fulfills the requirements of Grover's searching algorithm proposed by Leuenberger and Loss.
中文翻译：
内嵌金属富勒烯作为分子高自旋量子位：Gd2@C79N 中的不同 Rabi 循环
具有长相干时间的各向异性高自旋量子位可以扩展量子系统。已经提出可以在这样的系统中实现 Grover 算法。双金属氮杂 [80] 富勒烯 M2@C79N（M = Y 或 Gd）具有位于两个金属离子之间的未配对电子，提供了操纵笼中保护的自旋以进行量子信息处理的机会。在此，我们首次报道了 Gd2@C79N 的晶体学测定。这种具有由强磁耦合 (JGd-Rad = 350 ± 20 cm-1) 产生的集体高自旋基态 (S = 15/2) 的分子磁铁已通过磁化率实验明确验证。Gd2@C79N 具有量子相干性和不同的 Rabi 循环，允许在每个相邻级别之间进行任意叠加态操作。通过动态解耦，相位存储时间在 5 K 时达到 5 μs。该分子满足了 Leuenberger 和 Loss 提出的 Grover 搜索算法的要求。
更新日期：2018-01-10
中文翻译：
内嵌金属富勒烯作为分子高自旋量子位：Gd2@C79N 中的不同 Rabi 循环
具有长相干时间的各向异性高自旋量子位可以扩展量子系统。已经提出可以在这样的系统中实现 Grover 算法。双金属氮杂 [80] 富勒烯 M2@C79N（M = Y 或 Gd）具有位于两个金属离子之间的未配对电子，提供了操纵笼中保护的自旋以进行量子信息处理的机会。在此，我们首次报道了 Gd2@C79N 的晶体学测定。这种具有由强磁耦合 (JGd-Rad = 350 ± 20 cm-1) 产生的集体高自旋基态 (S = 15/2) 的分子磁铁已通过磁化率实验明确验证。Gd2@C79N 具有量子相干性和不同的 Rabi 循环，允许在每个相邻级别之间进行任意叠加态操作。通过动态解耦，相位存储时间在 5 K 时达到 5 μs。该分子满足了 Leuenberger 和 Loss 提出的 Grover 搜索算法的要求。
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