Quantum-geometry-induced anomalous Hall effect in nonunitary superconductors and application to Sr${}_2$RuO${}_4$

Jia-Long Zhang, Weipeng Chen, Hao-Tian Liu +3

The polar Kerr effect and the closely related anomalous charge Hall effect are among the most distinguishing signatures of the superconducting state in Sr${}_2$RuO${}_4$, as well as in…