A Green's function perturbation theory in the band basis gives analytical Hartree-Fock ground states for twisted bilayer graphene and shows self-consistent GW corrections reduce compressibility oscillations.
The corresponding order parameters are ˆ σz, ˆτz, and ˆτz ˆσz, respectively
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Many-body perturbation theory for moir\'{e} systems
A Green's function perturbation theory in the band basis gives analytical Hartree-Fock ground states for twisted bilayer graphene and shows self-consistent GW corrections reduce compressibility oscillations.