Average coherence and average correlated coherence as indicators of quantum phase transitions in the XY model with staggered Dzyaloshinskii-Moriya interaction

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-06-25 DOI:10.1088/1612-202x/ad59fd

Gan-Lu Li and Yu-Xia Xie

引用次数: 0

Abstract

The performance of average coherence (AC) and average correlated coherence (ACC) in detecting quantum phase transitions (QPTs) has been explored by considering the XY model with staggered Dzyaloshinskii-Moriya interaction. By using the quantum renormalization group method, it is shown that the ground-state AC and ACC show either a maximum or a minimum at the QPT point. Moreover, the AC and ACC susceptibilities (i.e. their derivatives with respect to the driving parameter) have two extreme points near the two sides of the QPT point. A finite-scaling analysis reveals that these extreme points tend to the QPT point after several iterations of the renormalization and the susceptibilities at the QPT point become divergent in the thermodynamic limit.

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平均相干性和平均相关相干性作为具有交错 Dzyaloshinskii-Moriya 相互作用的 XY 模型中量子相变的指标

通过考虑具有交错 Dzyaloshinskii-Moriya 相互作用的 XY 模型，探讨了平均相干性（AC）和平均相关相干性（ACC）在探测量子相变（QPT）方面的性能。通过使用量子重正化群方法，结果表明基态 AC 和 ACC 在 QPT 点要么显示最大值，要么显示最小值。此外，AC 和 ACC 的感度（即它们相对于驱动参数的导数）在 QPT 点两侧附近有两个极值点。有限缩放分析表明，经过几次重正化迭代后，这些极值点趋向于 QPT 点，而 QPT 点的感度在热力学极限中变得发散。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.