Corpus ID: 119504828

Non-Abelian topological phases in an extended Hubbard model

@article{Freedman2008NonAbelianTP,
  title={Non-Abelian topological phases in an extended Hubbard model},
  author={Michael H. Freedman and C. Nayak and Kirill Shtengel},
  journal={arXiv: Strongly Correlated Electrons},
  year={2008}
}
We describe four closely related Hubbard-like models (models A, B, C and D) of particles that can hop on a 2D Kagome lattice interacting via Coulomb repulsion. The particles can be either bosons (models A and B) or (spinless) fermions (models C and D). Models A and C also include a ring exchange term. In all four cases we solve equations in the model parameters to arrive at an exactly soluble point whose ground state manifold is the extensively degenerate ``d-isotopy space'' $\bar{V}_d$, 0<d<2… Expand
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