Anyon superconductivity from topological criticality in a Hofstadter-Hubbard model.

ABSTRACT: We argue that the combination of strong repulsive interactions and high magnetic fields can generate electron pairing and superconductivity. Inspired by the large lattice constants of moiré materials, which make large flux per unit cell accessible at laboratory fields, we study the triangular lattice Hofstadter-Hubbard model at one-quarter flux quantum per plaquette, where previous literature has argued that a chiral spin liquid separates a weak-coupling integer quantum Hall phase and a strong-coupling topologically trivial antiferromagnetic insulator at a density of one electron per site. We argue that topological superconductivity emerges upon doping in the vicinity of the integer quantum Hall to chiral spin liquid transition. We employ exact diagonalization and density matrix renormaliz

SUBMITTER: Divic S 

PROVIDER: S-EPMC12377739 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature