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Quantum Geometric Kohn-Luttinger Superconductivity
Gal Shavit, Jason Alicea
Coulomb repulsion can, counterintuitively, mediate Cooper pairing via the Kohn-Luttinger mechanism. However, it is commonly believed that observability of the effect requires speci…
Superconductivity from spin-canting fluctuations in rhombohedral graphene
Zhiyu Dong, Étienne Lantagne-Hurtubise, Jason Alicea
Rhombohedral graphene multilayers host various broken-symmetry metallic phases as well as superconductors whose pairing mechanism and order parameter symmetry remain unsettled. Str…
Andreev reflection spectroscopy in strongly paired superconductors
Cyprian Lewandowski, Étienne Lantagne-Hurtubise, Alex Thomson +2
Motivated by recent experiments on low-carrier-density superconductors, including twisted multilayer graphene, we study signatures of the BCS to BEC evolution in Andreev reflection…
Spin-Orbit Enhanced Superconductivity in Bernal Bilayer Graphene
Yiran Zhang, Robert Polski, Alex Thomson +7
In the presence of a large perpendicular electric field, Bernal-stacked bilayer graphene (BLG) features several broken-symmetry metallic phases as well as magnetic-field-induced su…
Ascendance of Superconductivity in Magic-Angle Graphene Multilayers
Yiran Zhang, Robert Polski, Cyprian Lewandowski +10
Graphene moire superlattices have emerged as a platform hosting and abundance of correlated insulating, topological, and superconducting phases. While the origins of strong correla…
Survival of the fractional Josephson effect in time-reversal-invariant topological superconductors
Christina Knapp, Aaron Chew, Jason Alicea
Time-reversal-invariant topological superconductor (TRITOPS) wires host Majorana Kramers pairs that have been predicted to mediate a fractional Josephson effect with periodici…