A controlled expansion in s² for electrons with concentrated kinematics allows analytical calculations of spectral broadening, T-linear resistivity in bad metals, and spectral functions in Mott semimetals for Hubbard and Chern band models.
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Hartree-Fock calculations show a doubly degenerate non-Abelian Chern band with |C|=1 at ν=2 in rhombohedral multilayer graphene, characterized by SU(2) gauge flux and non-Abelian holonomy.
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Controlled expansion for correlated electrons with concentrated kinematics
A controlled expansion in s² for electrons with concentrated kinematics allows analytical calculations of spectral broadening, T-linear resistivity in bad metals, and spectral functions in Mott semimetals for Hubbard and Chern band models.