We employ dynamical mean-field theory to study the optical conductivity ?(?) of one hole in the Holstein-t J model. We provide an exact solution for ?(?) in the limit of infinite connectivity. We apply our analysis to Nd2-xCexCuO4. We show that our model can explain many features of the optical conductivity in this compounds in terms of magnetic/lattice polaron formation.
Optical properties of the Holstein-t-J model from dynamical mean-field theory
E. Cappelluti;S. Ciuchi;S. Fratini
2008
Abstract
We employ dynamical mean-field theory to study the optical conductivity ?(?) of one hole in the Holstein-t J model. We provide an exact solution for ?(?) in the limit of infinite connectivity. We apply our analysis to Nd2-xCexCuO4. We show that our model can explain many features of the optical conductivity in this compounds in terms of magnetic/lattice polaron formation.File in questo prodotto:
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Descrizione: Optical properties of the Holstein-t–J model from dynamical mean-field theory
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