Ground-State Instabilities in The One-dimensional Penson-Kolb-Hubbard Model

Details Ground-State Instabilities in The One-dimensional Penson-Kolb-Hubbard Model Ground-State Instabilities in The One-dimensional Penson-Kolb-Hubbard Model

1995-09-19

arxiv.org/abs/cond-mat/9509117v1

Physics

Condensed Matter

9 pages, Latex, 4 Figures (upon request to : buzatu@thsun1.jinr.dubna.su)

Scientific paper

10.1103/PhysRevB.53.7171

Different kinds of instabilities (CDW, SDW, SS) in the 1D Hubbard model with pair-hopping interaction are investigated using an approximate Bethe-Salpeter equation. The study is performed at any density of electrons and for arbitrary values of the model parameters. In the absence of the on-site interaction, no transition occurs at half filling for any finite negative pair-hopping parameter, in agreement with recent results; our calculation suggests that the Penson-Kolb model (t,W) with $\mid W/t\mid<\pi/\sin k^{}_F$ behaves qualitatively like the Hubbard model (t,U). Phase diagrams of the Penson-Kolb-Hubbard model (t,U,W) at various densities are presented.

Affiliated with

Also associated with

No associations

Rating

Ground-State Instabilities in The One-dimensional Penson-Kolb-Hubbard Model 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 Ground-State Instabilities in The One-dimensional Penson-Kolb-Hubbard Model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ground-State Instabilities in The One-dimensional Penson-Kolb-Hubbard Model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-308943