Charge-density-wave and topological transitions in interacting Haldane model

Details Charge-density-wave and topological transitions in interacting Haldane model Charge-density-wave and topological transitions in interacting Haldane model

2010-12-23

arxiv.org/abs/1012.5163v1

Physics

Condensed Matter

Strongly Correlated Electrons

4.5 pages, 6 figures

Scientific paper

Haldane model is a noninteracting model for spinless fermions showing nontrivial topological properties. Effect of the electron-electron interaction on the topological phase poses an intriguing question. By means of the Hartree-Fock mean field, the exact diagonalization and the constrained-path Monte Carlo methods we mapped out the phase diagram of the interacting Haldane model. It is found that interaction breaks down the topological phase and drives the system into the charge-density-wave state. Sequence of the two transitions depends on the strength of next-nearest-neighbor hopping. Many-body Chern number and the charge excitation gap are used to characterize the topological transition.

Affiliated with

Also associated with

No associations

Rating

Charge-density-wave and topological transitions in interacting Haldane 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 Charge-density-wave and topological transitions in interacting Haldane model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Charge-density-wave and topological transitions in interacting Haldane model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-296285