是否存在关联电子体系的统一理论

发布时间：2018-03-12 16:10

  本文选题：朗道范式　切入点：强关联电子体系　出处：《科学通报》2017年01期 　论文类型：期刊论文

【摘要】：对称性自发破缺和费米液体理论作为凝聚态物理的两大基石是我们理解凝聚态物质的结构、物性、相变的出发点.在强关联电子系统中,电子关联效应有可能导致超越对称性自发破缺的新的有序形式和与之相应的新的元激发形式.这些新的有序形式往往与量子力学特有的非局域性相关,并伴随着低能规范自由度的涌现.为此,有必要扩展传统的朗道理论范式,使我们对物质结构的认识提升到量子波函数的层次.
[Abstract]:Spontaneous symmetry breaking and Fermi liquid theory as the two cornerstones of condensed state physics is our understanding of condensed state structure, physical properties, the starting point of transformation. In strongly correlated electron system, electron correlation effect may lead to beyond the spontaneous symmetry breaking of new organized forms and the corresponding new the elementary excitation form. These new order forms are often associated with non local quantum mechanics characteristic, and is accompanied by the emergence of low-energy gauge degrees of freedom. Therefore, it is necessary to extend the traditional paradigm of Landau theory, to our understanding of the material structure up to the quantum wave function level.

【作者单位】： 中国人民大学物理系;
【基金】：国家自然科学基金(11674391) 中国人民大学研究基金资助
【分类号】：O469
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本文编号：1602298