Boundary states and edge singularities in the degenerate Hubbard chain

authored by

Holger Frahm, Sascha Ledowski

Abstract

Using the Bethe ansatz we study the spectrum of boundary bound states of the SU(N) generalization of the one-dimensional Hubbard model with open boundaries and applied boundary potentials. The number of electrons bound by the boundary field is found from the surface contribution to the energy. Finite size corrections to the low-lying energies in this system and use of the predictions of boundary conformal field theory allows us to study the exponents related to the orthogonality catastrophe and absorption edges.

Organisation(s)

Institute of Theoretical Physics

Type

Article

Journal

Journal of Physics Condensed Matter

Volume

10

Pages

8829-8841

No. of pages

13

ISSN

0953-8984

Publication date

05.10.1998

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Materials Science(all), Condensed Matter Physics

Electronic version(s)

https://doi.org/10.1088/0953-8984/10/39/018 (Access: Unknown)