一维基塔耶夫模型中缺陷诱导的信息扰乱定位

IF 2.6 3区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY
Varadharajan Muruganandam, Manas Sajjan and Sabre Kais
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引用次数: 0

摘要

我们讨论了存在局部键缺陷的一维(1D)自旋罗盘模型或一维基塔耶夫模型。我们研究了基塔耶夫材料上出现的三种有关键性质和键强度的局部紊乱。通过精确对角化,计算出了缺陷自旋链的两点自旋-自旋结构相关性和四点时序外相关性(OTOC)。所提出的量给出了这些缺陷的特征,即它们对缺陷位置和强度的响应。一个重要的观察结果是,OTOC 空间中的信息扰乱会被困在缺陷部位,导致信息扰乱的局部化现象,从而使这些相关器成为检测和表征这些缺陷的合适诊断工具。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Defect-induced localization of information scrambling in 1D Kitaev model
We discuss one-dimensional(1D) spin compass model or 1D Kitaev model in the presence of local bond defects. Three types of local disorders concerning both bond-nature and bond-strength that occur on kitaev materials have been investigated. Using exact diagonalization, two-point spin-spin structural correlations and four-point Out-of-Time-Order Correlators(OTOC) have been computed for the defective spin chains. The proposed quantities give signatures of these defects in terms of their responses to location and strength of defects. A key observation is that the information scrambling in the OTOC space gets trapped at the defect site giving rise to the phenomena of localization of information scrambling thus making these correlators a suitable diagnostic tool to detect and characterize these defects.
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来源期刊
Physica Scripta
Physica Scripta 物理-物理:综合
CiteScore
3.70
自引率
3.40%
发文量
782
审稿时长
4.5 months
期刊介绍: Physica Scripta is an international journal for original research in any branch of experimental and theoretical physics. Articles will be considered in any of the following topics, and interdisciplinary topics involving physics are also welcomed: -Atomic, molecular and optical physics- Plasma physics- Condensed matter physics- Mathematical physics- Astrophysics- High energy physics- Nuclear physics- Nonlinear physics. The journal aims to increase the visibility and accessibility of research to the wider physical sciences community. Articles on topics of broad interest are encouraged and submissions in more specialist fields should endeavour to include reference to the wider context of their research in the introduction.
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