Rare isotope-containing diamond colour centres for fundamental symmetry tests.
Rare isotope-containing diamond colour centres for fundamental symmetry tests.
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用于基本对称性测试的稀有含量钻石颜色中心。
DOI：
10.1098/rsta.2023.0169
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发表时间：
2024-01-22
期刊：
影响因子：
5
通讯作者：
Becker, Jonas N.
中科院分区：
文献类型：
--
作者：
Morris, Ian M.;Klink, Kai;Singh, Jaideep T.;Mendoza-Cortes, Jose L.;Nicley, Shannon S.;Becker, Jonas N.
在粒子中探测到非零电偶极矩将明确地表明超出标准模型的物理学。实现这一目标的一个潜在途径是检测核希夫矩，其大小因核八极子变形的存在而增强。然而，由于具有这种“梨形”原子核的同位素的生产率很低，有效地捕获、探测和操纵它们是一个至关重要的先决条件。将它们结合到人造金刚石光学晶体中，可以在金刚石带隙内产生具有明确的分子样结构和隔离电子态的缺陷，从而提高捕获效率，甚至可以重复探测单个原子并产生窄的光学线宽。在这项研究中，我们使用密度泛函理论研究了含金刚石晶体缺陷的形成、结构和电子特性，这是一种罕见的同位素，被预测具有异常强的核八极子变形。此外，我们发现并研究了具有类似电子结构的稳定含镧缺陷作为非放射性代理，以帮助实验方法。我们的发现为这些缺陷的存在带来了希望，并有助于开发量子信息处理启发的工具箱，用于研究稀有同位素。本文是Theo Murphy会议议题“量子应用的钻石”的一部分。
Detecting a non-zero electric dipole moment in a particle would unambiguously signify physics beyond the Standard Model. A potential pathway towards this is the detection of a nuclear Schiff moment, the magnitude of which is enhanced by the presence of nuclear octupole deformation. However, due to the low production rate of isotopes featuring such ‘pear-shaped’ nuclei, capturing, detecting and manipulating them efficiently is a crucial prerequisite. Incorporating them into synthetic diamond optical crystals can produce defects with defined, molecule-like structures and isolated electronic states within the diamond band gap, increasing capture efficiency, enabling repeated probing of even a single atom and producing narrow optical linewidths. In this study, we used density functional theory to investigate the formation, structure and electronic properties of crystal defects in diamond containing , a rare isotope that is predicted to have an exceptionally strong nuclear octupole deformation. In addition, we identified and studied stable lanthanide-containing defects with similar electronic structures as non-radioactive proxies to aid in experimental methods. Our findings hold promise for the existence of such defects and can contribute to the development of a quantum information processing-inspired toolbox of techniques for studying rare isotopes. This article is part of the Theo Murphy meeting issue ‘Diamond for quantum applications’.
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