In the dilute limit of the 1D infinite-U Hubbard model the charge Drude weight admits a closed-form expression whose low-temperature expansion, after regularization of the singular contribution, yields linear-in-T resistivity.
Gull , author O
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A universal magnetic energy scale J* emerges at finite doping in the Fermi-Hubbard model, controlling magnetic correlations, bimagnon spectra, pseudogap onset, and the transition to incommensurate spin-density waves.
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Transport and Temperature 1: Exact spectrum and resistivity for the one-dimensional infinite-$U$ Hubbard model
In the dilute limit of the 1D infinite-U Hubbard model the charge Drude weight admits a closed-form expression whose low-temperature expansion, after regularization of the singular contribution, yields linear-in-T resistivity.
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Universal magnetic energy scale in the doped Fermi-Hubbard model
A universal magnetic energy scale J* emerges at finite doping in the Fermi-Hubbard model, controlling magnetic correlations, bimagnon spectra, pseudogap onset, and the transition to incommensurate spin-density waves.