金刚石<sup>13</sup>C核子定位用参数可调动态解耦序列

张刚源; 袁珩; 范鹏程

doi:10.13700/j.bh.1001-5965.2017.0652

金刚石¹³C核子定位用参数可调动态解耦序列

doi: 10.13700/j.bh.1001-5965.2017.0652

北京航空航天大学仪器科学与光电工程学院, 北京 100083

基金项目:

国家自然科学基金 61773046

国家自然科学基金 61403014

国家自然科学基金 61227902

国家重点研发计划 2016YFB0501604

详细信息

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

通讯作者:
袁珩, E-mail: hengyuan@buaa.edu.cn

中图分类号: TH744;O413.2
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- 被引次数: 20
出版历程
- 收稿日期: 2017-10-23
- 录用日期: 2017-12-15
- 网络出版日期: 2018-08-20

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

School of Instrumentation Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

Funds:

National Natural Science Foundation of China 61773046

National Natural Science Foundation of China 61403014

National Natural Science Foundation of China 61227902

National Key R & D Program of China 2016YFB0501604

More Information

Corresponding author: YUAN Heng, E-mail: hengyuan@buaa.edu.cn

摘要

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。
- 金刚石 /
- NV^-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 NV^-color center in diamond, which has significant applications in quantum information and quantum detector.
- diamond /
- NV^- color center /
- dynamical decoupling /
- nuclear spin /
- addressing

HTML全文

图 1 APDD脉冲序列单周期内脉冲分布示意图

Figure 1. Schematic of pulse distribution of APDD pulse protocol in single cycle

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图 2 NV^-色心金刚石模型

Figure 2. NV^- color center diamond model

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图 3 CPMG/XY4序列与APDD序列核子定位比较

Figure 3. Comparison of nuclear addressing between CPMG/XY4 and APDD protocols

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图 4 CPMG/XY4序列和APDD序列线宽条形图

Figure 4. Bar chart of linewidth of CPMG/XY4 and APDD protocols

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图 5 APDD序列线宽变化

Figure 5. APDD protocols linewidth variation

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