arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1503.08964cond-mat.dis-nn
收藏

对称、对称类与对称空间:从无序与量子混沌到拓扑绝缘体

Of symmetries, symmetry classes, and symmetric spaces: from disorder and quantum chaos to topological insulators

Martin R. Zirnbauer

摘要:

由于多重散射而具有某种程度复杂性的量子力学系统表现得好像它们的哈密顿量是随机矩阵。这种行为,虽然最初推测为相互作用的多体系统的高度激发的原子核,后来发现在各种情况下,包括单粒子系统的无序或混乱。在这方面的一个迷人的主题是出现的普遍规律的波动的能量谱和运输观测。在介绍了基本的现象学之后,讲座强调了对称性对普遍性的作用,特别是对称类和对称空间之间的对应关系,导致了一个被称为“十重方式”的分类方案。也许令人惊讶的是,同样的方案也组织了拓扑绝缘体的世界。

英文摘要:

Quantum mechanical systems with some degree of complexity due to multiple scattering behave as if their Hamiltonians were random matrices. Such behavior, while originally surmised for the interacting many-body system of highly excited atomic nuclei, was later discovered in a variety of situations including single-particle systems with disorder or chaos. A fascinating theme in this context is the emergence of universal laws for the fluctuations of energy spectra and transport observables. After an introduction to the basic phenomenology, the talk highlights the role of symmetries for universality, in particular the correspondence between symmetry classes and symmetric spaces that led to a classification scheme dubbed the 'Tenfold Way'. Perhaps surprisingly, the same scheme has turned out to organize also the world of topological insulators.

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。

↑