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arXiv 2602.08308math-phmath.MP
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不协调系统的Schrödinger算子谱分析

Spectral Analysis of the Schrödinger Operator for the Incommensurate System

SKLMS, Academy of Mathematics and Systems Science, Chinese Academy of Sciences(中国科学院数学与系统科学研究院);School of Mathematical Sciences, University of Chinese Academy of Sciences(中国科学院大学数学科学学院);School of Mathematical Sciences, Peking University(北京大学数学科学学院)

Yan Li, Yujian Song, Aihui Zhou

AI总结:

本文通过正则化技术,证明了不协调系统Schrödinger算子的谱可由正则化算子的谱近似,并展示了Bloch型解的存在,为理解不协调系统提供了理论支持。

摘要:

许多新颖且独特的不协调系统物理现象可以通过相关Schrödinger算子的谱来示示和预测。然而,这些系统缺乏周期性,给获取谱信息带来了重大挑战。在本文中,通过将系统嵌入更高维度并引入正则化技术,我们证明了不协调系统Schrödinger算子的谱可以近似由一族正则化Schrödinger算子的谱来表示,这些算子是椭圆的,保留周期性,并具有良好的解析性和谱性质。我们还展示了不协调系统Schrödinger方程的Bloch型解的存在,这些解可以很好地由与正则化算子相关的方程的Bloch解近似。我们的分析为理解和计算不协调系统提供了理论支持。

英文摘要:

Many novel and unique physical phenomena in incommensurate systems can be illustrated and predicted using their spectral structure and electronic state distributions. However, the absence of periodicity in these systems poses significant challenges for obtaining the associated information. In this paper, by embedding the system into higher dimensions together with introducing a regularization technique, we prove that the spectrum of the Schrödinger operator for the incommensurate system can be approximated by the spectra of a family of regularized Schrödinger operators, which are elliptic, retain periodicity, and enjoy favorable analytic and spectral properties. We also show the well-posedness of the probability density describing the electronic state distribution of the incommensurate system, which can be approximated by the ones generated by the Bloch solutions to the regularized model. Our analysis provides theoretical support for understanding and computing incommensurate systems.

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。

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