Correlated states in magic angle twisted bilayer graphene under the optical conductivity scrutiny

@article{Calderon2019CorrelatedSI,
  title={Correlated states in magic angle twisted bilayer graphene under the optical conductivity scrutiny},
  author={M. J. Calder'on and E Bascones},
  journal={npj Quantum Materials},
  year={2019},
  volume={5},
  pages={1-6}
}
Moiré systems displaying flat bands have emerged as novel platforms to study correlated electron phenomena. Insulating and superconducting states appear upon doping magic angle twisted bilayer graphene (TBG), and there is evidence of correlation induced effects at the charge neutrality point (CNP) which could originate from spontaneous symmetry breaking. Our theoretical calculations show how optical conductivity measurements can distinguish different symmetry breaking states, and reveal the… 
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