论文标题

由古典大型旋转背景引起的拓扑厅效应:$ SU(2)

Topological Hall effect induced by classical large-spin background: $su(2)$ path-integral approach

论文作者

Kesharpu, Kaushal K., Kochetov, Evgenii A., Ferraz, Alvaro

论文摘要

$ su(2)$相干状态路径综合技术用于研究与量子自旋背景的晶格电子。在大型旋转限制中,它被其经典的对应物取代,它破坏了时间反转对称性。然后,通过经典的大型自旋纹理传播的费米子可能会表现出拓扑厅的效果,即使是对于基础旋转背景的零标量旋转手性也会产生的。

The $su(2)$ coherent-state path-integral technique is employed to study lattice electrons strongly coupled to a quantum spin background. In the large-spin limit it is replaced with its classical counterpart that breaks the time-reversal symmetry. The fermions propagating through a classical large-spin texture may then exhibit the topological Hall effect which arises even for a zero scalar spin chirality of the underlying spin background.

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