中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Robust quantum state transfer inspired by Dzyaloshinskii-Moriya interactions

文献类型:期刊论文

作者Shi, X.; Yuan, H.; Mao, X.; Ma, Y.; Zhao, H. Q.
刊名PHYSICAL REVIEW A
出版日期2017
卷号95期号:5
ISSN号2469-9926
DOI10.1103/PhysRevA.95.052332
通讯作者Shi, X ; Zhao, HQ (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Ctr Quantum Informat Technol, Chongqing 400714, Peoples R China.
英文摘要Quantum state transfer (QST) is a fundamental problem in quantum mechanics and is important for quantum information processing. In this paper we explore a fast, robust, and efficient QST in spin-based quantum dots. Differing from the usual method that only uses the exchange interactions to control the evolution of the spin system, here we treat the non-negligible Dzyaloshinskii-Moriya (DM) interactions that can be electrically and thermally controlled in quantum dots as an assisted driving to accelerate the population transfer. We demonstrate that the DM interactions are not an error source, but are beneficial for population evolution under certain condition because they can sufficiently eliminate the undesirable quantum transitions among adiabatic passages and strictly maintain the population evolution in a designed passage with high efficiency. We give a generic N-spin anisotropic Heisenberg spin model to describe the population evolution and take specific two-and three-spin systems as examples to demonstrate the advantages of the DM interactions for QST.
语种英语
WOS记录号WOS:000401444200004
源URL[http://172.16.51.4:88/handle/2HOD01W0/225]  
专题量子信息技术研究中心
作者单位(1) Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Ctr Quantum Informat Technol, Chongqing 400714, Peoples R China; (2) Beijing Computat Sci Res Ctr, Quantum Phys & Quantum Informat Div, Beijing 100193, Peoples R China
推荐引用方式
GB/T 7714
Shi, X.,Yuan, H.,Mao, X.,et al. Robust quantum state transfer inspired by Dzyaloshinskii-Moriya interactions[J]. PHYSICAL REVIEW A,2017,95(5).
APA Shi, X.,Yuan, H.,Mao, X.,Ma, Y.,&Zhao, H. Q..(2017).Robust quantum state transfer inspired by Dzyaloshinskii-Moriya interactions.PHYSICAL REVIEW A,95(5).
MLA Shi, X.,et al."Robust quantum state transfer inspired by Dzyaloshinskii-Moriya interactions".PHYSICAL REVIEW A 95.5(2017).

入库方式: OAI收割

来源:重庆绿色智能技术研究院

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