ITP OpenIR  > 理论物理所2014年知识产出
Single-spin manipulation in a double quantum dot in the field of a micromagnet
Chesi, S; Wang, YD; Yoneda, J; Otsuka, T; Tarucha, S; Loss, D; Chesi, S (reprint author), Beijing Computat Sci Res Ctr, Beijing 100084, Peoples R China.
2014
发表期刊PHYSICAL REVIEW B
ISSN1098-0121
卷号90期号:23页码:235311
摘要The manipulation of single spins in double quantum dots by making use of the exchange interaction and a highly inhomogeneous magnetic field was discussed in Coish and Loss [Phys. Rev. B 75, 161302 (2007)]. However, such large inhomogeneity is difficult to achieve through the slanting field of a micromagnet in current designs of lateral double dots. Therefore, we examine an analogous spin manipulation scheme directly applicable to realistic GaAs double dot setups. We estimate that typical gate times, realized at the singlet-triplet anticrossing induced by the inhomogeneous micromagnet field, can be a few nanoseconds. We discuss the optimization of initialization, read-out, and single-spin gates through suitable choices of detuning pulses and an improved geometry. We also examine the effect of nuclear dephasing and charge noise. The latter induces fluctuations of both detuning and tunneling amplitude. Our results suggest that this scheme is a promising approach for the realization of fast single-spin operations.
部门归属[Chesi, Stefano] Beijing Computat Sci Res Ctr, Beijing 100084, Peoples R China
关键词Electron Spins Computation Qubit
学科领域Physics
资助者IARPA project "Multi-Qubit Coherent Operations" through Copenhagen University; 1000 Youth Fellowship Program of China; ImPACT Program of Council for Science Technology and Innovation (Cabinet Office, Government of Japan); FIRST; Japan Prize Foundation; JSPS; RIKEN incentive project; Yazaki Memorial Foundation; Swiss NSF; NCCR QSIT; [26220710] ; IARPA project "Multi-Qubit Coherent Operations" through Copenhagen University; 1000 Youth Fellowship Program of China; ImPACT Program of Council for Science Technology and Innovation (Cabinet Office, Government of Japan); FIRST; Japan Prize Foundation; JSPS; RIKEN incentive project; Yazaki Memorial Foundation; Swiss NSF; NCCR QSIT; [26220710] ; IARPA project "Multi-Qubit Coherent Operations" through Copenhagen University; 1000 Youth Fellowship Program of China; ImPACT Program of Council for Science Technology and Innovation (Cabinet Office, Government of Japan); FIRST; Japan Prize Foundation; JSPS; RIKEN incentive project; Yazaki Memorial Foundation; Swiss NSF; NCCR QSIT; [26220710] ; IARPA project "Multi-Qubit Coherent Operations" through Copenhagen University; 1000 Youth Fellowship Program of China; ImPACT Program of Council for Science Technology and Innovation (Cabinet Office, Government of Japan); FIRST; Japan Prize Foundation; JSPS; RIKEN incentive project; Yazaki Memorial Foundation; Swiss NSF; NCCR QSIT; [26220710]
DOI10.1103/PhysRevB.90.235311
URL查看原文
收录类别SCI
语种英语
资助者IARPA project "Multi-Qubit Coherent Operations" through Copenhagen University; 1000 Youth Fellowship Program of China; ImPACT Program of Council for Science Technology and Innovation (Cabinet Office, Government of Japan); FIRST; Japan Prize Foundation; JSPS; RIKEN incentive project; Yazaki Memorial Foundation; Swiss NSF; NCCR QSIT; [26220710] ; IARPA project "Multi-Qubit Coherent Operations" through Copenhagen University; 1000 Youth Fellowship Program of China; ImPACT Program of Council for Science Technology and Innovation (Cabinet Office, Government of Japan); FIRST; Japan Prize Foundation; JSPS; RIKEN incentive project; Yazaki Memorial Foundation; Swiss NSF; NCCR QSIT; [26220710] ; IARPA project "Multi-Qubit Coherent Operations" through Copenhagen University; 1000 Youth Fellowship Program of China; ImPACT Program of Council for Science Technology and Innovation (Cabinet Office, Government of Japan); FIRST; Japan Prize Foundation; JSPS; RIKEN incentive project; Yazaki Memorial Foundation; Swiss NSF; NCCR QSIT; [26220710] ; IARPA project "Multi-Qubit Coherent Operations" through Copenhagen University; 1000 Youth Fellowship Program of China; ImPACT Program of Council for Science Technology and Innovation (Cabinet Office, Government of Japan); FIRST; Japan Prize Foundation; JSPS; RIKEN incentive project; Yazaki Memorial Foundation; Swiss NSF; NCCR QSIT; [26220710]
WOS记录号WOS:000346377400002
引用统计
被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15539
专题理论物理所2014年知识产出
通讯作者Chesi, S (reprint author), Beijing Computat Sci Res Ctr, Beijing 100084, Peoples R China.
推荐引用方式
GB/T 7714
Chesi, S,Wang, YD,Yoneda, J,et al. Single-spin manipulation in a double quantum dot in the field of a micromagnet[J]. PHYSICAL REVIEW B,2014,90(23):235311.
APA Chesi, S.,Wang, YD.,Yoneda, J.,Otsuka, T.,Tarucha, S.,...&Chesi, S .(2014).Single-spin manipulation in a double quantum dot in the field of a micromagnet.PHYSICAL REVIEW B,90(23),235311.
MLA Chesi, S,et al."Single-spin manipulation in a double quantum dot in the field of a micromagnet".PHYSICAL REVIEW B 90.23(2014):235311.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Single-spin manipula(741KB) 开放获取CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Chesi, S]的文章
[Wang, YD]的文章
[Yoneda, J]的文章
百度学术
百度学术中相似的文章
[Chesi, S]的文章
[Wang, YD]的文章
[Yoneda, J]的文章
必应学术
必应学术中相似的文章
[Chesi, S]的文章
[Wang, YD]的文章
[Yoneda, J]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。