Chiral Spin Liquid in Correlated Topological Insulator

Understand

In this paper, we investigate the topological Hubbard model - the spinful Haldane model with on-site interaction on honeycomb lattice with spin rotation symmetry by using slave-rotor approach and find that chiral spin liquid exists in such a correlated electron system of the intermediate coupling region.

• By considering the anyon nature of excitations, chiral spin liquid may be the ground state of the topological Hubbard model.
• The low energy physics is basically determined by its Chern-Simons gauge theory.