arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.08071cond-mat.stat-mech
收藏

一维伊辛模型中无相变还是随温度扩散相变?

No or diffuse phase transition with temperature in one-dimensional Ising model?

Yi-Neng Huang, Li-Li Zhang

摘要:

自1925年伊辛模型提出以来的近一个世纪里,人们一直认为在整个温度范围内不存在整体自发磁化的基础上,一维体系不存在随温度变化的相变。本文对局域自发磁化强度的精确计算表明,在一维伊辛模型中发生了随温度的扩散相变。此外,虽然弥散相变现象在非均匀组分和晶粒等体系中普遍存在,由于目前还没有相应的理论模型进行精确的预测,因此本文的工作为这种相变的研究奠定了理论基础。

英文摘要:

For nearly a century since Ising model was proposed in 1925, it is agreed that there is no phase transition with temperature in the one-dimensional based on no global spontaneous magnetization in whole temperature region. In this paper, the exact calculation of local spontaneous magnetization shows that a diffuse phase transition with temperature occurs in one-dimensional Ising model. In addition, although diffuse phase transition phenomenon is common in the systems of heterogeneous-components and grains etc., there is no accurate prediction of corresponding theoretical models so far, so the present works lay the theoretical foundation of this kind of phase transition.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑