Pseudoparticle Description of the 1D Hubbard Model Electronic Transport Properties

Details Pseudoparticle Description of the 1D Hubbard Model Electronic Transport Properties Pseudoparticle Description of the 1D Hubbard Model Electronic Transport Properties

1996-12-12

arxiv.org/abs/cond-mat/9612123v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, RevTex, one figure (can be obtained upon request from peres@evunix.uevora.pt). To apper in the Proceedings of the Eur

Scientific paper

10.1007/s002570050362

We extend the pseudoparticle transport description of the Hubbard chain to all energy scales. In particular we compute the mean value of the electric current transported by any Bethe-ansatz state and the transport masses of the charge carriers. We present numerical results for the optical conductivity of the model at half-filling for values of U/t=3 and 4. We show that these are in good agreement with the pseudoparticle description of the finite-energy transitions involving new pseudoparticle energy bands.

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