Boundary effects on one-particle spectra of Luttinger liquids

Details Boundary effects on one-particle spectra of Luttinger liquids Boundary effects on one-particle spectra of Luttinger liquids

1999-03-07

arxiv.org/abs/cond-mat/9903121v3

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages including 4 figures, revised version, to be published in Phys. Rev. B, January 2000

Scientific paper

10.1103/PhysRevB.61.4393

We calculate one-particle spectra for a variety of models of Luttinger liquids with open boundary conditions. For the repulsive Hubbard model the spectral weight close to the boundary is enhanced in a large energy range around the chemical potential. A power law suppression, previously predicted by bosonization, only occurs after a crossover at energies very close to the chemical potential. Our comparison with exact spectra shows that the effects of boundaries can partly be understood within the Hartree-Fock approximation.

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