中国科学院理论物理研究所机构知识库
Advanced  
ITP OpenIR  > 理论物理所1978-2010年知识产出  > 期刊论文
题名: Coherence loss and recovery of an electron spin coupled inhomogeneously to a one-dimensional interacting spin bath: An adaptive time-dependent density-matrix renormalization group study
作者: Wang, Zhi-Hui ;  Wang, Bing-Shen ;  Su, Zhao-Bin
刊名: PHYSICAL REVIEW B
出版日期: 2008
卷号: 78, 期号:5, 页码:-
关键词: WAVE-FUNCTION COLLAPSE ;  QUANTUM ;  MODEL ;  DECOHERENCE ;  REDUCTION ;  DYNAMICS ;  SILICON
学科分类: Physics
通讯作者: Wang, ZH , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China, Peoples R China
部门归属: [Wang, ZH; Su, ZB] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; [Wang, BS] Chinese Acad Sci, Inst Semicond, Beijing 100090, Peoples R China; [Wang, BS] Chinese Acad Sci, State Key Lab Semicond Superlattice & Microstruct, Beijing 100090, Peoples R China
英文摘要: Coherence evolution and echo effect of an electron spin, which is coupled inhomogeneously to an interacting one-dimensional finite spin bath via hyperfine-type interaction, are studied using the adaptive time-dependent density-matrix renormalization group method. It is found that the interplay of the coupling inhomogeneity and the transverse intrabath interactions results in two qualitatively different coherence evolutions, namely, a coherence-preserving evolution characterized by periodic oscillation and a complete decoherence evolution. Correspondingly, the echo effects induced by an electron-spin flip at time tau exhibit stable recoherence pulse sequence for the periodic evolution and a single peak at root 2 tau for the decoherence evolution, respectively. With the diagonal intrabath interaction included, the specific feature of the periodic regime is kept, while the root 2 tau-type echo effect in the decoherence regime is significantly affected. To render the experimental verifications possible, the Hahn echo envelope as a function of tau is calculated, which eliminates the inhomogeneous broadening effect and serves for the identification of the different status of the dynamic coherence evolution, periodic versus decoherence.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000259368200089
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5488
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Coherence loss and recovery of an electron spin coupled inhomogeneously to a one-dimensional interacting spin bath An adaptive time-dependent density-matrix renormalization group study.pdf(281KB)----开放获取View Download

Recommended Citation:
Wang, Zhi-Hui,Wang, Bing-Shen,Su, Zhao-Bin. Coherence loss and recovery of an electron spin coupled inhomogeneously to a one-dimensional interacting spin bath: An adaptive time-dependent density-matrix renormalization group study[J]. PHYSICAL REVIEW B,2008,78(5):-.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Wang, Zhi-Hui]'s Articles
 [Wang, Bing-Shen]'s Articles
 [Su, Zhao-Bin]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Wang, Zhi-Hui]‘s Articles
 [Wang, Bing-Shen]‘s Articles
 [Su, Zhao-Bin]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
文件名: Coherence loss and recovery of an electron spin coupled inhomogeneously to a one-dimensional interacting spin bath An adaptive time-dependent density-matrix renormalization group study.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院理论物理研究所 - Feedback
Powered by CSpace