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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Numerical simulations of two incommensurate tight-binding chains reveal a mobility edge with abrupt localization onset in higher-energy states, enhanced by weak magnetic fields but reversed by strong fields.
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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.
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Quantum localization in incommensurate tight-binding chains
Numerical simulations of two incommensurate tight-binding chains reveal a mobility edge with abrupt localization onset in higher-energy states, enhanced by weak magnetic fields but reversed by strong fields.