A note on density correlations in the half-filled Hubbard model

Preprint

28 February 1999

preprint
Published by arXiv in arXiv

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 (BA/CFT) approach. We show that by supplementing the BA/CFT analysis with simple symmetry arguments one can easily prove the exponential decay of density correlations.

Keywords

DENSITY CORRELATIONS
CONSIDER DENSITY
DENSITY DENSITY
FILLED HUBBARD
HUBBARD MODEL
HALF FILLING
INTUITIVE
BA/CFT
DECAY

All Related Versions

Version 1, 1999-02-28, ArXiv
Version 2, 1999-09-28, ArXiv
Published version: Physical Review B, 60 (12), 8540.

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