Quantum mechanics

Pairing

Spin (aerodynamics)

Gapless playback

Graphene

Superlattice

Economics

Thermodynamics

Physics

Mathematics

Superconductivity

Condensed matter physics

Combinatorics

Finance

Topology (electrical circuits)

Order (exchange)

Physical Review Letters

We study a minimal Hubbard model for electronically driven superconductivity in a correlated flat mini-band resulting from the superlattice modulation of a twisted graphene multilayer. The valley degree of freedom drastically modifies the nature of thepreferred pairing states, favoring spin triplet $d+id$ order with a valley singlet structure. We identify two candidates in this class, which are both topological superconductors. These states support half-vortices carrying half the usual superconducting flux quantum $hc/(4e)$, and have topologically protected gapless edge states.

Topological Superconductivity in Twisted Multilayer Graphene