北京航空航天大学学报 ›› 2018, Vol. 44 ›› Issue (8): 1733-1738.doi: 10.13700/j.bh.1001-5965.2017.0652

• 论文 • 上一篇    下一篇

金刚石13C核子定位用参数可调动态解耦序列

张刚源, 袁珩, 范鹏程   

  1. 北京航空航天大学 仪器科学与光电工程学院, 北京 100083
  • 收稿日期:2017-10-23 修回日期:2017-12-15 出版日期:2018-08-20 发布日期:2018-08-29
  • 通讯作者: 袁珩 E-mail:hengyuan@buaa.edu.cn
  • 作者简介:张刚源,男,硕士研究生。主要研究方向:金刚石色心量子态操控;袁珩,男,博士,副教授,硕士生导师。主要研究方向:金刚石色心量子态操控、量子传感、微纳芯片;范鹏程,男,博士研究生。主要研究方向:金刚石色心量子态操控、金刚石色心量子传感。
  • 基金资助:
    国家自然科学基金(61773046,61403014,61227902);国家重点研发计划(2016YFB0501604)

Adjustable-parameter dynamical decoupling protocol for 13C nuclear addressing in diamond

ZHANG Gangyuan, YUAN Heng, FAN Pengcheng   

  1. School of Instrumentation Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
  • Received:2017-10-23 Revised:2017-12-15 Online:2018-08-20 Published:2018-08-29
  • Supported by:
    National Natural Science Foundation of China (61773046, 61403014, 61227902); National Key R&D Program of China (2016YFB0501604)

摘要: 针对金刚石内13C核自旋的逐个定位,提出了一种非均匀分布周期内对称的动态解耦序列——可调动态解耦(APDD)序列。针对该序列,进行了理论推导和仿真分析;并就13C核自旋定位精度指标,与目前金刚石内原子量子态操控使用最为广泛的CPMG (Carr-Purcell-Meiboom-Gill)脉冲序列和XY4序列进行了比较。结果表明,相比于CPMG序列与XY4序列,APDD序列可将单个13C核自旋的定位精度提高6.27倍。进一步研究表明,在单个周期内比值τ1/τ介于0.51~0.58范围为APDD序列核子定位最优工作条件。因此,APDD序列能被用于控制毗邻金刚石中NV色心的核自旋,并且在量子信息和量子探测器领域有着重要的应用。

关键词: 金刚石, NV&mdash, 色心, 动态解耦, 核自旋, 定位

Abstract: A symmetric non-equally spaced protocol named adjustable-parameter dynamical decoupling (APDD) was proposed to individually map 13C nuclear spin in diamond. The principles of the APDD sequence are in detail numerically calculated and simulation analyzed. The 13C nuclear spin addressing accuracy of APDD protocol was compared with Carr-Purcell-Meiboom-Gill (CPMG) and XY4 protocol, which are most widely used in diamond atom quantum manipulation. Results show that the 13C nuclear spin addressing accuracy of APDD protocol was 6.27 times higher than CPMG and XY4 sequences. Furthermore, τ1/τ ratio ranging from 0.51 to 0.58 is the best operating condition for APDD protocol. The APDD protocol will pave the way towards manipulation of the nuclear spins surrounding the NVcolor center in diamond, which has significant applications in quantum information and quantum detector.

Key words: diamond, NV- color center, dynamical decoupling, nuclear spin, addressing

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