Exact Drude weight for the one-dimensional Hubbard model at finite temperatures

Preprint

29 October 1997

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9710313

Abstract

The Drude weight for the one-dimensional Hubbard model is investigated at finite temperatures by using the Bethe ansatz solution. Evaluating finite-size corrections to the thermodynamic Bethe ansatz equations, we obtain the formula for the Drude weight as the response of the system to an external gauge potential. We perform low-temperature expansions of the Drude weight in the case of half-filling as well as away from half-filling, which clearly distinguish the Mott-insulating state from the metallic state.

Keywords

DIMENSIONAL HUBBARD MODEL
FINITE TEMPERATURES
HUBBARD MODEL
BETHE ANSATZ
DRUDE WEIGHT
EXACT DRUDE

All Related Versions

Version 1, 1997-10-29, ArXiv
Published version: Journal of Physics A: General Physics, 31 (2), 465.

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