Fractional chern insulator

HIGHLIGHTS

• who: Fractional Chern, Insulator and N., Regnault from the Laboratoire, rue Lhomond, Paris, France Princeton University have published the research work: Fractional Chern Insulator, in the Journal: (JOURNAL) of 16/06/2011
• what: By diagonalizing the Hubbard interaction in the flat-band limit of these insulators the authors show the following: The authors show that a repulsiveinteraction Hamiltonian has a 3-fold degenerate ground_state at filling 1=3 separated from the excited_states by a gap, which the authors show approaches a finite value in the thermodynamic limit. In Fig 1 the authors show the spectrum . . .
  

   

  

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