来自量子几何的非线性热力学与热电输运
介观与纳米尺度物理
2026-05-11 v2 强关联电子
摘要
量子几何可能促进从超导性到关联拓扑态等量子相的发展。一种强大的探测量子几何手段是非线性霍尔响应，它检测具有时反演不变性和破坏反演对称性的系统中的 Berry 曲率偶极子。当破坏时反演对称性时，这一响应也与量子度量偶极子相关。 Here we investigate nonlinear thermal and thermoelectric responses, which provide a wealth of new information about quantum geometry. In particular, we uncover a web of connections between these quantities that parallel the standard Wiedemann-Franz and Mott relations. Implications for the studies of a variety of topological systems, including Weyl-Kondo semimetals and Bernal bilayer graphene, are discussed.
引用
@article{arxiv.2505.16999,
title = {Nonlinear thermal and thermoelectric transport from quantum geometry},
author = {Yuan Fang and Shouvik Sur and Yonglong Xie and Qimiao Si},
journal= {arXiv preprint arXiv:2505.16999},
year = {2026}
}
备注
7+15 pages, 2+7 figures