Optical and spectral properties of quantum domain walls in the generalized wigner lattice

@article{Fratini2007OpticalAS,
  title={Optical and spectral properties of quantum domain walls in the generalized wigner lattice},
  author={S. Fratini and G. Rastelli},
  journal={Physical Review B},
  year={2007},
  volume={75}
}
  • S. Fratini, G. Rastelli
  • Published 2007
  • Physics
  • Physical Review B
  • We study the spectral properties of a system of electrons interacting through long-range Coulomb potential on a one-dimensional chain. When the interactions dominate over the electronic bandwidth, the charges arrange in an ordered configuration that minimizes the electrostatic energy, forming Hubbard's generalized Wigner lattice. In such strong coupling limit, the low energy excitations are quantum domain-walls that behave as fractionalized charges, and can be bound in excitonic pairs… CONTINUE READING

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