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arXiv · 0704.0333

Optical properties of the Holstein-t-J model from dynamical mean-field theory

E. Cappelluti·S. Ciuchi·S. Fratini
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Abstract

We employ dynamical mean-field theory to study the optical conductivity $σ(ω)$ of one hole in the Holstein-t-J model. We provide an exact solution for $σ(ω)$ in the limit of infinite connectivity. We apply our analysis to Nd$_{2-x}$Ce$_x$CuO$_4$. We show that our model can explain many features of the optical conductivity in this compounds in terms of magnetic/lattice polaron formation.

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E. Cappelluti, S. Ciuchi, S. Fratini. 2007-04-03. Optical properties of the Holstein-t-J model from dynamical mean-field theory. https://doi.org/10.1016/j.physb.2007.10.107

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