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

北京航空航天大学学报 ›› 2018, Vol. 44 ›› Issue (8): 1733-1738.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

张刚源, 袁珩, 范鹏程

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

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/Abstract

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 NV^—color center in diamond, which has significant applications in quantum information and quantum detector.

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

中图分类号:

TH744
O413.2

张刚源, 袁珩, 范鹏程. 金刚石¹³C核子定位用参数可调动态解耦序列[J]. 北京航空航天大学学报, 2018, 44(8): 1733-1738.

ZHANG Gangyuan, YUAN Heng, FAN Pengcheng. Adjustable-parameter dynamical decoupling protocol for ¹³C nuclear addressing in diamond[J]. JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2018, 44(8): 1733-1738.

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金刚石¹³C核子定位用参数可调动态解耦序列

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

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