Density correlations in the half-filled Hubbard model

authored by
Fabian H. L. Eßler, Holger Frahm
Abstract

We consider density-density correlations in the one-dimensional Hubbard model at half filling. On intuitive grounds one might expect them to exhibit an exponential decay. However, as has been noted recently, this is not obvious from the Bethe Ansatz/conformal field theory 共BA/CFT兲 approach. We show that by supplementing the BA/CFT analysis with simple symmetry arguments one can easily prove that correlations of the lattice density operators decay exponentially.

Organisation(s)
Institute of Theoretical Physics
External Organisation(s)
University of Oxford
Type
Article
Journal
Physical Review B
Volume
60
Pages
8540-8452
ISSN
2469-9950
Publication date
15.09.1999
Publication status
Published
Peer reviewed
Yes
Electronic version(s)
http://arxiv.org/abs/cond-mat/9903008 (Access: Open)
https://doi.org/10.1103/PhysRevB.60.8540 (Access: Closed)
https://doi.org/10.15488/5082 (Access: Open)