Self-Consistent Second Order Perturbation Theory for the Hubbard Model in Two Dimensions

Details Self-Consistent Second Order Perturbation Theory for the Hubbard Model in Two Dimensions Self-Consistent Second Order Perturbation Theory for the Hubbard Model in Two Dimensions

1998-12-22

arxiv.org/abs/cond-mat/9812358v1

Physics

Condensed Matter

Strongly Correlated Electrons

8 pages, 12 embedded EPS figures, to appear in J. Phys. Soc. Jpn. Vol. 68-3 (1999)

Scientific paper

10.1143/JPSJ.68.903

We apply self-consistent second order perturbation theory (SCSOPT) with respect to the on-site repulsive interaction U to study the Hubbard model in two dimensions. We investigate single particle properties of the model over the entire doping range at zero temperature. It is shown that as doping decreases toward half-filling $\omega$-mass enhancement factor increases, while k-mass enhancement factor decreases. The increase in $\omega$-mass enhancement factor is larger than the decrease in k-mass enhancement factor, so that total-mass is larger than that in the non-interacting case. When particle number density per unit cell n is given by 0.64

Affiliated with

Also associated with

No associations

Rating

Self-Consistent Second Order Perturbation Theory for the Hubbard Model in Two Dimensions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Self-Consistent Second Order Perturbation Theory for the Hubbard Model in Two Dimensions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-Consistent Second Order Perturbation Theory for the Hubbard Model in Two Dimensions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-10966