Transport properties of one-dimensional Hubbard models

S. Kirchner, H. G. Evertz, and W. Hanke
Phys. Rev. B 59, 1825 – Published 15 January 1999
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Abstract

We present results for the zero- and finite-temperature Drude weight D(T) and for the Meissner fraction of the attractive and the repulsive Hubbard model, as well as for the model with next-nearest-neighbor repulsion. They are based on quantum Monte Carlo studies and on the Bethe ansatz. We show that the Drude weight is well defined as an extrapolation on the imaginary frequency axis, even for finite temperature. The temperature, filling, and system size dependence of D is obtained. We find counterexamples to a conjectured connection of dissipationless transport and integrability of lattice models.

  • Received 11 May 1998

DOI:https://doi.org/10.1103/PhysRevB.59.1825

©1999 American Physical Society

Authors & Affiliations

S. Kirchner

  • Institut für Theoretische Physik, Universität Würzburg, 97074 Würzburg, Germany
  • Institut für Theorie der Kondensierten Materie, Universität Karlsruhe, 76128 Karlsruhe, Germany

H. G. Evertz

  • Institut für Theoretische Physik, Universität Würzburg, 97074 Würzburg, Germany
  • ISSP, University of Tokyo, Roppongi 7-22-1, Minato-ku, Tokyo 106, Japan

W. Hanke

  • Institut für Theoretische Physik, Universität Würzburg, 97074 Würzburg, Germany

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Vol. 59, Iss. 3 — 15 January 1999

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