Symmetry breaking in the Hubbard model at weak coupling

Details Symmetry breaking in the Hubbard model at weak coupling Symmetry breaking in the Hubbard model at weak coupling

2002-02-26

arxiv.org/abs/cond-mat/0202492v1

Phys. Rev. B 65, 081105(R) (2002)

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1103/PhysRevB.65.081105

The phase diagram of the Hubbard model is studied at weak coupling in two and three spatial dimensions. It is shown that the Neel temperature and the order parameter in d=3 are smaller than the Hartree-Fock predictions by a factor of q=0.2599. For d=2 we show that the self-consistent (sc) perturbation series bears no relevance to the behavior of the exact solution of the Hubbard model in the symmetry-broken phase. We also investigate an anisotropic model and show that the coupling between planes is essential for the validity of mean-field-type order parameters.

Affiliated with

Also associated with

No associations

Rating

Symmetry breaking in the Hubbard model at weak coupling 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 Symmetry breaking in the Hubbard model at weak coupling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Symmetry breaking in the Hubbard model at weak coupling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-51899