The coexistence of superconductivity and fractional quantum anomalous Hall (FQAH) effect has recently been observed in twisted MoTe2 and theoretically demonstrated in a model of repulsively interacting electrons under an emergent magnetic field arising from the layer pseudospin texture in moir\'e superlattice. Here, we show that this superconducting state is a chiral f-wave superconductor hosting an array of double vortices, which are induced by the emergent magnetic field with h/e flux quanta per moir\'e unit cell. This superconducting vortex lattice state is topological and features Chern number −1/2, giving rise to a half-integer thermal Hall conductance. Our theory provides a common mechanism and unified understanding of FQAH and topological superconductivity, with a rich phase diagram controlled by the spatial modulation of the emergent magnetic field.
@article{arxiv.2602.15106,
title = {Topological superconductivity with emergent vortex lattice in twisted semiconductors},
author = {Daniele Guerci and Ahmed Abouelkomsan and Liang Fu},
journal= {arXiv preprint arXiv:2602.15106},
year = {2026}
}