Superconductivity and strong correlations in moiré flat bands

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Prediction of Toric Code Topological Order from Rydberg Blockade (2020, background): “, in arrays of superconducting qubits [138–140], magnets with strongly-anisotropic exchange [141], or perhaps even in recently developed two-dimensional materials [142].”
Superconductivity, superfluidity and quantum geometry in twisted multilayer systems (2021, neutral): “∑ H U c c c c = − , (6) α α α α α i i i i i int ̂ ̂ ̂ ̂ ̂ ↑ † ↑ ↓ † ↓”
Colloquium : Quantum anomalous Hall effect (2022, background): “The broken symmetry states that have been realized include superconductors (Balents et al., 2020; Cao et al., 2018b; Lu et al., 2019; Yankowitz et al., 2019), Mott insulators (Cao et al., 2018a), Wigner crystals (Li et al., 2021c; Xu et al., 2020b) and - of particular interest to this review -…”
Symmetry-broken Chern insulators and Rashba-like Landau-level crossings in magic-angle bilayer graphene (2020, background): “1° (MATBG), ultra-flat moiré bands (1-6) host strongly interacting electrons which give rise to a plethora of phases including correlated insulators (CI)(1, 7-10), superconductors (SC)(2, 7, 11-21) and orbital magnets (OM)(7, 22-24).”