Fractionalized Fermionic Quantum Criticality in Spin-Orbital Mott Insulators.

@article{Seifert2020FractionalizedFQ,
  title={Fractionalized Fermionic Quantum Criticality in Spin-Orbital Mott Insulators.},
  author={Urban F. P. Seifert and Xiao-yu Dong and Sreejith Chulliparambil and Matthias Vojta and Hong-Hao Tu and Lukas Janssen},
  journal={Physical review letters},
  year={2020},
  volume={125 25},
  pages={
          257202
        }
}
We study transitions between topological phases featuring emergent fractionalized excitations in two-dimensional models for Mott insulators with spin and orbital degrees of freedom. The models realize fermionic quantum critical points in fractionalized Gross-Neveu* universality classes in (2+1) dimensions. They are characterized by the same set of critical exponents as their ordinary Gross-Neveu counterparts, but feature a different energy spectrum, reflecting the nontrivial topology of the… 

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