Optical conductivity of the infinite-dimensional Hubbard model

Details Optical conductivity of the infinite-dimensional Hubbard model Optical conductivity of the infinite-dimensional Hubbard model

1994-12-16

arxiv.org/abs/cond-mat/9412084v1

Physics

Condensed Matter

24 pages, revtex, including 5 figures compressed with uufiles

Scientific paper

10.1103/PhysRevB.51.11704

A Monte Carlo-maximum entropy calculation of the optical conductivity of the infinite-dimensional Hubbard model is presented. We show that the optical conductivity displays the anomalies found in the cuprate superconductors, including a Drude width which grows linearly with temperature, a Drude weight which grows linearly with doping, and a temperature and doping-dependent mid-IR peak. These anomalies arise as a consequence of the dynamical generation of a quasiparticle band at the Fermi energy as T -> 0, and are a generic property of the strongly correlated Hubbard model in all dimensions greater than one.

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