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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Tuned long-range density-density interactions enable underdamped hot band sound in chaotic 1D spinless fermion models at infinite temperature.
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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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Hot band sound
Tuned long-range density-density interactions enable underdamped hot band sound in chaotic 1D spinless fermion models at infinite temperature.