Boundary bound states for the open Hubbard chain with boundary fields

Details Boundary bound states for the open Hubbard chain with boundary fields Boundary bound states for the open Hubbard chain with boundary fields

1997-02-28

arxiv.org/abs/cond-mat/9703001v3

Physics

Condensed Matter

Strongly Correlated Electrons

Latex, 9 pages

Scientific paper

10.1143/JPSJ.66.1950

The boundary effects in the open Hubbard chain with boundary fields are studied. The boundary string solutions of the Bethe ansatz equations that give rise to a wave functions localized at the boundary and exponentially decreasing away from the boundary are provided. In particular, it is shown that the correct ground state of the model at half-filling contains the boundary strings.

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