# Analysis of optical conductivities of cuprates via doped Hubbard model

@article{Jongbae1997AnalysisOO, title={Analysis of optical conductivities of cuprates via doped Hubbard model}, author={Hong Jongbae and Hae Young Kee}, journal={Physica C-superconductivity and Its Applications}, year={1997}, volume={282}, pages={1743-1744} }

## References

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It is shown that the optical conductivity displays the anomalies found in the cuprate superconductors, including a Drude width which grows linearly with temperature, a Drudes weight which grows Linearly with doping, and a temperature and doping-dependent mid-IR peak.

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The paramagnetic solution shows that the Mott-Hubbard transition is signaled by both collapsing Hubbard bands and appearing $\delta$-function peak at midgap, and the transition is second order at the ground state.

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The results for the paramagnetic phase display the features expected from an intuitive analysis of the one-particle spectra and substantiate the similarity of the physics of the Hubbard model to those heavy-fermion systems.

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We show that the analytic single-particle density of states and the optical conductivity for the half-filled Hubbard model on the Bethe lattice in infinite dimensions describe quantitatively the…

Correlated electrons in high-temperature superconductors

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Theoretical ideas and experimental results concerning high-temperature superconductors are reviewed. Special emphasis is given to calculations performed with the help of computers applied to models…

Optical conductivity of the two-dimensional Hubbard model.

- PhysicsPhysical review. B, Condensed matter
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It is found that to reproduce qualitatively the main experimental features of {sigma}{sub 1}({omega}), the model needs to work with a coupling constant of the order of the bandwidth, i.e., {ital U}/{ital t}{similar to}8--10.

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The resulting spectrum in the high-{ital T}{sub {ital c}} regime is suggestive of a strongly itinerant character of the state in the moderately doped CuO{sub 2} plane while appreciable weight remains in the charge-transfer energy region.

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Physical properties of the half-filled Hubbard model in infinite dimensions.

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A detailed quantitative study of the physical properties of the infinite-dimensional Hubbard model at half filling using an exact mapping onto a single-impurity model supplemented by a self-consistency condition is presented.